Hi Gary;
I've never built a Van Loo Chip, but am on my second Super Chip. The first flew very well; tight corners and unwavering level flight. The one under construction has many of the Dave Fitz mods: equal panel wing (span now 54 3/4"), fuse is 3' longer and the stab/elevator has about an inch more span. I've had to re-design the rear of the fuse to make room for a Tom Morris adjustable control horn and an access panel . . . the rear of the stock fuse doesn't have much manuvering room.
I've sheeted the wing, first time I've done that, so I'm now sure where the weight will fall. If under 55oz I might install a B-40 in, otherwise an LA 46.
If you do not have a copy of Dave's discription of his mods and would like them, let me know. I got them from Walter, so maybe you already have them too.
Brian