As I am approaching the end of the build, it looks like RockSim and my rocket don't quite agree on the CG, even though I weighed every component. My aft end is heavier than the one in RockSim. I will re-calculate the extra weight in the aft end.

In any event, nose weight will be needed to make this rocket stable. It is barley stable with no motor installed, and the CG moves to about an 1/8 of an inch forward of the CP with a 29mm AT E motor in it, the largest I plan on flying.

The amount of nose weight will be determined soon.