Big difference in cam specs for dynamic compression?

The lunati voodoo 268/276 and XE268 are are both cut on a 110LSA with 4 degrees advance and both have their IVC at 60.

Edit. Is it possible you are comparing the lunati 262/268 which is cut on a 112 and +4 to the XE268?

Lunati 256/262 = IVC @56
Lunati 262/268 = IVC @59
Lunati 268/276 = IVC@60
Comp XE268H = IVC@60