Hey guys, hope someone can give some idea on this. Building a 4.5X upscale of the old Astron Sprite and need some idea of where to start on the CG placement. Want to put a rail guide right on the cg, figure that would allow easy swing test. Using the Peter Alway plans as a guide but he doesn't mention anything about cg. Hope someone can lend a hand here. Thanks in advance. John.