I really didn't notice any difference using the DPM system on my CZ 75B P-01 Omega or CZ 75B omega convertibles. Just don't use the short spring supplied with the kit, as it caused my slide stop to break on my 75B. The CZ Warranty Dept advised me that the slide stop is not warrantable for this reason and that the factory supplied plastic recoil guide and spring should be sufficient. I am still using the DPM system on both of my CZ 75B's, mostly because of the supposed "Slide and Frame Protection". The CZ Warranty Dept did advise that they were not aware of any unfavorable issues with the DPM System.