buddy of mine and I are about to build a forged 5.9L EFI, Blown motor for his truck.

We've got a piston in mind that we'll probably go with...forged, the manufacturer says they're good for boost, and they give a near ideal Compression of 9.5 for good efficiency in non-boost driving, yet low enough to tolerate a healthy dose of pressure at WOT (with meth injection too)

but...what pistons are you guys running and how much did they cost...and what special treatments need to be done to them?

(coatings...are they needed? stronger pins, are they needed? dedicated pin oiling, are they needed? etc.)