Its been about awhile since I have made a bow and need some advice.  What is the best glue to make a form, and what type of plywood would be best. Last time I used contact cement and wood screws.  Plywood was cdx.  Thanks for any suggestions in advance.

My neighbor owns a cabinet shop. 5 years ago I got two 9 ply 3/4" cabinet grade birch plywood sheets from him..with a filler piece of 3/8?" to make three 1 3/4" wide forms.  Alot of guys are buying LVL for forms..it comes 1 3/4" wide I think..

I used tite bond 2 wood glue and at least 100 1 1/4" drywall screws on each form blank.

these doug fir lvl's are stout and straight---

http://www.kennisonforest.com/app/download/8405040783/Sure-Lam+2.0+Spec+Sheet.pdf?t=1378241115