Ok, I have been monkeying with this off and on for a while and I guess I've reached my limits...

FYI: I am modding a recent 6354DO for a G34 + X300 for a CZ P-07 + RM07 + X300U-B + DG Switch + Primary Machine Stealth Comp
I worked in enough clearance for the DG switch but my (recent mfg) holster has the following issues:
1. VERY tight fit - the X300 *seems* to catch on the edges of the internal material and a lot of force is needed to insert/remove the gun once past that
2. the ALS does not lock - maybe I do not have enough clearance?
I was under the impression that newer versions of this holster supported a rear sight in the standard position behind the RMR (closer to the shooter's eye) and that the X300U-B was supported. Am I wrong? At this point the P-07 is the only gun I care to support in this holster so I am not really worried about applying some
extreme effort to mod it but I am at the limits of what I know to do...
Any help appreciated!