Chris,

a new thread with your question about the Jekyll will help to get your answer. It's too buried in here.

If I'm not mistaken, the Jekyll was designed by Chip Hyde who posts here from time to time. You could send him a PM directly. I think there might also be a thread on the Jekyll somewhere in the forum.

The wing plan in this post will show you how to determine the CG aerodynamically (at the intersection of the 25% chord line and the MAC line). A little search on Google will bring you lots of good info on this. The rest would be fine tuning after a test flight.

http://www.rcuniverse.com/forum/fb.asp?m=9500059

Also, show us some pics of your goods!

David.