With the SLICC the top of the claw is even with the top edge of the belt (holster itself is a straight drop). If the claw was higher I'd have no problem with removing the offending length.
The man issue is the firearm itself. The holster is more of a "deep concealment". With a Shield it pretty much has to be because the slide length and length of the fram forward of the trigger guard is short. If the gun rode any higher the top of it would tend to flop outward.
There is no perfect holster. 23 years of experience behind that statement.
What I should probably do is just wear the holster more and do some dedicated practice drawing and firing (real ammo, not dry-firing). I've got enough ammo but finding a place that allows holster work is problematic.
And if it comes to chopping off some of the claw I have a coping saw, a Dremel, and wet/dry sandpaper.