I have recently picked up a Sig P229 Elite that came with the E2 grips. I would like to spice up the gun and put the Houge G10 grips on it which brings the question to me are the holes for the E2 grips and the G10's the same? And will I need to buy anything other than the grips or is it plug and play? Thank you for replies in advance I am a new sig owner