HeadSpace

Yup rollsizer is great but customer service is crappy. "You bought it.. your problem" kinda people.

Are you selling it? if so how much?

It's simple. Iron sights or RDS? Use whatever you are most comfortable with. It's personal preference. The only difference between iron sights and RDS is the speed of target aquisition. RDS you don't need to align the front sight, rear sight and the target. You just place your dot on the target and shoot. And yes, with RDS, you focus on the target with both eyes open. Your eyes will make the necessary adjustments to a point where, even if you cover the lens of your optic. You will still see the red dot on your target. When you can do that, then you are using your RDS properly.

hmm.. they say it may not cause you harm. But its not their face or hands that fires the gun. Would you want to find out if it does not harm you?

I am sorry I couldnt see the picture well. I did'nt ntoice it was a TS or shadow (they don't have FPB) One thing you can do to isolate the binding is using an eraseable marker, mark or paint the parts that make contact. The barrel, the slide rails, the hammer, the inside of the slide that makes contact with the barrel. The slide lock pin and contact point to the barrel, the portion that locks the barrel to the slide when you rack the slide, etc.. Mark or paint the parts that make contact one section at a time. Maybe this will help you isolate the area that's binding.