thank you very much guys for all the input. Definitely my issue is not the slide stop, actually my fingers dont get there when I grab the gun, my issue is with the mag release which Im going to check soon for adjustment. Interesting my gun came with the flat slide release (like the one from Ben Stoeger) installed and the not flat and ambi in a bag in the box, so I guess CZ is now including both, will be nice if the include a less protruded mag release too, well, maybe is just an adjustment that I dont know. I checked the instructions manual but no info about that at all. I will report my findings.