| 1998-10-10 | David Fergus's Estes Quark | 1/2A3-4 | - | lucky to find this green and yellow thing in the grass down range. |
| 1999-11-28 | Mark Patoka's Estes Quark | A10-3 | - | Flew out of sight except for smoke. Came straight back down with little drift. Once again buried... |
| 1999-11-28 | Mark Patoka's Estes Quark | 1/4A3-3 | - | Initial flight, straight up. Came straight back down buried up to fins in soft ground. |
| 2000-01-15 | MikeyR's Estes Quark | 1/4A3-3 | - | Saw the whole way! Nice flight. |
| 2000-02-19 | MikeyR's Estes Quark | 1/4A3-3 | - | Nicely up and down. Saw it the whole way. |
| 2000-04-21 | MikeyR's Estes Quark | 1/4A3-3 | - | Nicely up and down. Good way to finish the morning. |
| 2000-09-13 | Donald Besaw's Estes Quark | 1/2A3-4 | - | Flew straight up. Recovered about 50 feet away stuck nose down in the ground. Motor casing not... |
| 2000-10-29 | Brandon Mickel's Estes Quark | 1/4A3-3 | - | Landed 7 feet from pad - no tumble recovery - buried nose cone in soft earth - no damage |
| 2000-11-03 | Brandon Mickel's Estes Quark | 1/4A3-3 | - | Straight flight - landed about 25' from pad - no tumble recovery - buried nose cone in soft earth. |
| 2000-11-03 | Brandon Mickel's Estes Quark | A10-3 | - | Fast off pad - saw tracking smoke - landed about 300' from pad. |
| 2000-11-18 | Chuck Rider's Estes Quark | A3-4 | - | Out of sight |
| 2001-01-07 | Randy Powell's Estes Quark | 1/4A3-3 | - | nice flight....recovered |
| 2001-01-20 | Chuck Rider's Estes Quark | A3-4 | - | Out of sight - Lost the rocket |
| 2001-04-08 | Ed Scientist's Estes Quark | 1/2A3-4 | - | You cannot see this rocket in flight. I heard it stab into the ground rihgt next to second base. |
| 2001-07-08 | David Fergus's Estes Quark | MMX | - | accelerated into ground at ejection |
| 2001-07-15 | Robert Brown's Estes Quark | 1/2A3-4 | - | Dangerous rocket, flew 100+ altitide and nosed into ground twice. Too much mass in plastic nose. |
| 2003-03-08 | Matt Vennard's Estes Quark | A10-3 | - | Second Flight. Just as high as the first. Recovered engine, but rocket wasn't found. |
| 2003-08-11 | Jon Revelle's Estes Quark | A3-2 | - | Nice flight. Almost lost. Needs a brighter paint color. |
| 2003-08-24 | Steve Thompson's Estes Quark | A10-3 | - | My girlfriend said it went to heaven where other big kids can enjoy the Quark like we did. I guess... |
| 2003-08-24 | Chan Stevens's Estes Quark | 1/4A3-3 | - | I've actually flown this 5-6 times now |
| 2004-03-11 | Jerry Nishihira's Estes Quark | 1/2A3-4 | - | good flight but rocket is so small it disappeared until I heard the pop from ejection. Rocket was... |
| 2004-03-11 | Jerry Nishihira's Estes Quark | 1/2A3-4 | - | same good flight, same recovery - lawn dart. |
| 2004-03-21 | Forrest Henry's Estes Quark | 1/2A3-2 | - | Second flight of this Quark. Great straight flight, but went FOOSH-POP and never saw another sign... |
| 2004-04-23 | Mike Mistele's Estes Quark | 1/2A3-2 | - | First flight. Arced with the wind. Saw the ejection charge blow, but didn't see it descend. Found... |
| 2004-05-31 | Carl Cravens's Estes Quark | A3-4 | - | Beautiful launch, the A3 left a long smoke trail. A moment later, I saw the puff of smoke from the... |
| 2004-06-20 | Mark Patoka's Estes Quark | 1/4A3-3 | - | Very quick takeoff. Spent engine was ejected from rocket and recovered. |
| 2004-08-07 | Andy Turits's Estes Quark | 1/2A3-4 | - | Duplicate of previous flight and recovery situation. Landed 180 degrees opposite of previous... |
| 2004-12-04 | Scott Hauff's Estes Quark | A10-3 | - | Man, this on one fast rocket on an A10 - don't blink or you will loose it. Found it lawn darted!!! |
| 2004-12-18 | Scott Hauff's Estes Quark | A10-3 | - | Alas, my quark is gone!!! I am happy to have gotten at least 2 flights out of it though. Isn't... |
| 2005-03-20 | Kyle Hancock's Estes Quark | A10-P | - | Lost sight. Found under car tire. |
| 2005-05-08 | Chase Hrncir's Estes Quark | 1/4A3-3 | - | Sportflyers Estates, Brookshire, TX--Great flight, landed 10 ft from me. |
| 2006-04-14 | Mal McClenaghan's Estes Quark | A3-4 | - | This rocket is a good demonstration of what can be done with a small amount of thrust. The Quark... |
| 2006-09-02 | Donald Besaw's Estes Quark | 1/4A3-3 | - | Nice quick flight, reached a modest altitude. No damage. |
| 2006-09-02 | Donald Besaw's Estes Quark | A10-3 | - | Very quick flight, really ripped off the pad on the A10. Never saw ejection but I actually found... |
| 2006-10-08 | Chan Stevens's Estes Quark | 1/4A3-3 | - | Actually recovered it! |
| 2007-06-01 | Chan Stevens's Estes Quark | 1/4A3-3 | - | Got it back, too! |
| 2007-06-02 | Andrew Grippo's Estes Quark | A3-4 | - | Good flight and recovery. |
| 2007-06-02 | Dwayne Shmel's Quark | 1/2A3-4 | - | Went up - didn't see it. Then it landed about 10 feet from me with a small thud as it nosed into... |
| 2007-09-22 | Chan Stevens's Estes Quark | 1/4A3-3 | - | |
| 2007-12-09 | Mark Lafavor's Estes Quark | 1/2A3-4 | - | Great first flight, but very difficult to see. It landed about 10 feet away. The nosecone was... |
2009-05-31  | Luke Wolski's Estes Quark | MMX | - | Great first flight of the Quark! |
| 2009-05-31 | Jason Orosco's Estes Quark | 1/4A3-3 | - | Nice flight followed all the way down. |
| 2009-09-13 | Team Tracy's Estes Quark | 1/4A3-3 | - | 2nd flight. Nose cone separated, but rocket still lawn darted in, even thought there was now 18in... |
| 2009-09-13 | Team Tracy's Estes Quark | 1/4A3-3 | - | Modified with a blow nose cone by adding engine block and then epoxying 18in Kevlar to the engine... |
| 2009-09-19 | Luke Wolski's Estes Quark | MMX | - | Great flight but landed nose first in the street. Needs a little repair but will definitely fly... |
2009-10-04  | Team Tracy's Estes Quark | 1/4A3-3 | - | 3rd flight. Added 4 in. of streamer made from wadding and tied 1 in. from nose cone to try to stop... |
| 2010-07-27 | Tyler Runyon's Estes Quark | 1/2A3-4 | - | Straight up, lost after ejection. Found a day later while moving chairs in back yard before... |
2011-09-10  | Chris J Taylor's Quark | A10-3T | - | First flight for this tiny rocket. real straight and real high...nobody saw it after smoke trail... |
| 2011-10-02 | Dave B's Pinkie Quark | 1/2A3-4T | 700-800' feet | Cool little rocket. Speeds up at apogee and whistles on desent. Became a 5" long lawn dart and... |
M.P. (December 1, 1999)