*NOTE:  B6-4 NOT RECOMMENDED FOR THIS ROCKET!* Should've used a B4-2 or B6-2, but didn't have them, so I tried a B6-4.  This was mostly to see how the rocket launches up rather than to test the glide, so I thought it would be okay; however ejection charge was very, very late and heartstoppingly close (maybe 20' agl).  I was afraid charge would plow the glider down, but luckily it swooped a bit before hitting the ground and was fine except for being filled with snow.  Picked it up almost like a sno-cone. :)  Rocket launched up at a forward angle at about 45 degrees due to the angled launch lug.