Like the title says will the 17 PPQ mags function in a PDP Compact (regular polymer frame)? I know the 15 rounders do. Would I meed to worry about over insertion or anything?

Im looking for the an IWB holster for the Walther PDP SF as the from and fit is slightly different. Im struggling a bit to find a good one for specific SF frame

I have a pdp 4” compact with a tlr7 and a Safariland owb. If I buy a pdp compact x PMM can I modify the holster to fit it?

My Walther p22q shoots a couple inches low. It has been checked by other people at the range and everyone shoots it low. I have the shortest front sight on it without it being the flat front sight. What are my options here besides just aiming a little higher?