Ah-ha! That works! Got the fins in the right orientation! I also went ahead and took the mass override OFF of the sim..Yeah, with a C6 loaded the stability is shown as 'marginal' with a margin of 0.54..Add 1/2oz weight and margin goes to 1.85..Flew it in the sim on a C6-5 altitude reached was 836 with a DV of 24ft/sec..

So, I guess the answer is 1/2oz of nose weight

__________________
Jon
SAM #0396
BAR 02/07
NAR 86940
KF4GUL
Aim high, fly straight!