(02-28-2012, 01:20 PM)reubin Wrote: THE REAL WAY TO GET AROUND THIS IS: do your own darting; to force the piece to be curved.

Assuming we're all talking about custom pieces made properly from a good template-- I've never ever done anything like this, and the pieces fit fine with zero ripples along the hairline (or anywhere else) for as long as they can be worn.