Thanks to both you guys for ansering me. Cutting on a curve sounds good Ray, but leather isn't big enough. Twelve Feet is a LONNNNG piece of leather.
My side I'm cutting from is about 90 inches. I think I'll go with barge cement, & saddle stitch,two pieces together.
Thanks for the tip on NOT stitching across. How about in a X stitch pattern. or just on the edges of the overlap part.
thanks again, KEEP ON POUNDING