How you test for contact areas on new pistols?

[Scarlett Pistol]

So I would prefer not to wait for several hundred dry fires to find some rubbing areas in the action of the 75's.

A specific example is my SP-01. Over time I noticed much more wear/polishing on the hammer where it contacts the frame as it rotates back and forward in Double Action. I've realized that this is not only causing a rougher DA trigger pull, but it is creating additional friction and reducing the energy of the hammer as it strikes the firing pin. I'm working those areas over now, but I want to be able to detect these wear patterns sooner. 

What are some ways you all determine/find areas of contact/rubbing/interfacing/wear like this so you can address them earlier/when you get the pistols? Thanks for all the help!

[IDescribe]

I look for Schmeky's polishing posts and polish where he tells me to. 

[MadDuner]

That's what I followed and I am very happy with the results.

[Earl Keese]

I polish mine from new, so I polish all contact areas. I've never seen a benefit to suffering through a "break in period". I test new guns for function and detail strip to make sure there isn't a warranty issue, then the polishing gets done and Cajun parts go in.

[seaswol]

After polishing and putting in some Cajun spice,  I would replace the barrel bushing.  Does nothing for trigger pull but greatly tightens up the group on a new gun or one with 8,000 rounds thru it.

[Scarlett Pistol]

I polish mine from new, so I polish all contact areas. I've never seen a benefit to suffering through a "break in period". I test new guns for function and detail strip to make sure there isn't a warranty issue, then the polishing gets done and Cajun parts go in.

That is the way I like to induct new pistols as well. This is definitely a request for a process to identify issues that are less common.

I'm definitely not a professional gunsmith. I've just gotten to the point where I have worked on enough CZ's where I have run into these outlier (uncommon) issues. I think I need to document the one I am working on right now and that post will help this request make more sense.

[skin]

 I've used blue machinist dye. Doesn't take long.

[1SOW]

I look for Schmeky's polishing posts and polish where he tells me to. 

Add the mag release  for a very light polishing of both ends of the rod where it passes through the frame.  Mine felt gritty and NOT smooth.

[Scarlett Pistol]

I've used blue machinist dye. Doesn't take long.

Ahh yes, that is something I'm looking for! Thanks!

[Joe L]

You can use a Sharpie just to see where the contact points are.  I use s silver one on black parts and black ones on the lighter parts. 
You can use a knife sharpening stone (new) and run the part (like a hammer side or trigger bar) over what you think is a flat surface on the part and see the high points pretty quickly with just a few passes.
Joe

[skin]

You are very welcome