Mark:
That is the same exact sail I have. I believe they are from the same batch of orders from VMI.

I was running around 3" of mast pre-bend to flatten out the sail. But it killed my boat speed. Tim, was doing laps around me. The winds were around 3 to 5 kts max.

Tim:
My spreaders are now further forward and I am running 35 on the loose gauge. Yesterday while at your lake, they were further back and I was at 37 on the loose gauge. The mast surely looks straighter now (less pre-bend). Now to test sail this saturday, only problem is no other blades to test with.