I have a set of Crimson Trace laser grips on my 642-1 and I am happy with them. I am considering the CT Sub-Compact Glock Laser Grip LG-626 for my Glock27. My question is will these require some new holsters? I currently carry IWB in either a Don Hume leather rig with no thumb break or a DeSantis Dual Carry rig with the thumb break. Thanks in advance.