ggale,
Just a word of caution. The CG of 1/8" behind the main spar, as indicated in the assembly manual is incorrect. I have some pencil notes in my manual which indicate the CG at 3/4" behind the main spar, not 1/8". This may or may not be correct; it's been a long time since I assembled mine.
I suggest that you contact Horizon Product Support to confirm the correct CG.
Regards to all!