Word to the wise for the Patriot participants. Check your CP-CG Relationship BEFORE Midwest Power weekend. For reference, according to Thrustcurve the K850 weighs 4.5lbs and is 25" long.
PS, Rocksim CG does not always agree with ACTUAL CG.
PPS, I've heard too many times "but Rocksim said it was stable".
PPPS: not saying the 5.5" Patriot is unstable, just sayin' you should check in advance...it may need some noseweight.
PPPPS: A little mark on your rocket where the CP may help with a potentially concerned RSO.
PPPPPS: We all build differently, but I concentrated on minimal weight in the bottom half and still had to add some weight in order to get to an acceptable margin of stability.
That's all for now; see you in 2 weeks!