On the last match it turned out that some shooters declared, that anything that is sold on cz-usa.com, is LEGAl for PD in IPSC (Nonsense). As far as I understand the discussion, only those things, that are listed on czub.cz, are legal (Correct).
Therefor my questions:
Recoil Spring: On czub.cz there is only one recoil spring listed, a replacement part. There is no 11 lb recoil spring. Thus, any 11 lb recoil spring from cz-usa.com or czcustom.com ist NOT LEGAl for PD (Correct).
Magazin spring 1: On czub.cz there is only one magazin spring listed, a replacement part. Thus, if I replace in my original CZ magazin the spring by a more powerfull one, this is NOT LEGAL (Correct).
Magazin Spring 2: Using a third party magazin: If I replace the magazin spring from a third party magazin (mec gear) by a more powerfull one from Wolff, that is LEGAL. (Correct)
Extractor: As I have problems using Blazer alloy ammo, I would like to change the form ot the extractor a very little bit by taking off very little of the material from the extractor. The intention is to make a very minor change in order to get the extractor to funktion properly. Is this LEGAl in PD? (Yes)
Grip: The only grips listed on czub.cz are wood, rubber, and metal grips to use with tape. (the red, blue and silver ones). On cz-usa.com there are black thin metal grips. Althougt I can see these grips on a lot of PD guns, they are NOT LEGAL, are they? (Legal, if they're on the approved CZ parts list - see below)http://czcustom.com/cz_75-thin-grips-border-checker.aspx (Approved if they have the same profile as the grips in the image below.)
Safety: On the poster with the approved parts there are 3 different safeties. I can not see wether they are one-sides or ambi. Is it LEGAL in PD to replace the ambi safety by the "enlarged safety left side only"? (Yes)