Putting up hundreds of feet of MDF trim. (1/2" casings, baseboards etc.) Using 2" finish nails in the gun. Only about one in nine nails sets below the surface. Pain in the ass to bend and set nails at odd angles, even though I can swing a hammer with either hand.

Gun pressure set to 90 psi. Any suggestions? Buy a better gun? Would lubricating the nails help.
BTW, the nail heads are proud by about 1/32".

All advise appreciated.

Ivan Vegvary