Question about the shape of the slider frame

[Philippe CORDIER]

I am actually working on the slider frame.
My question is :
On the section 9 "the canopy" page 9-10 it says : Be sure that the top center of the frame ... and the front top of the frame is about 1/8 - 3/16 higher then the roll bar.
On the DWG 43 DETAIL B it is written : 3/8 at roll bar/canopy frame top and center.
What is the good size ? 1/8-3/16 or 3/8 ? ...
I haven't seen any answer about that in the VAF forum and I am waiting for an answer from Van's.
Friendly.

[chipf]

Philippe,
It needs to match the contour of the canopy. 1/8" is not enough, I think I got close to the 3/8" number. If you can control these dimensions to that tolerance you are doing much better than I did.
Any slight imperfections can be adjusted with shims.