I prefer speedglas with the grinding shield. Haven't had to go to the eye doctor since I've owned one. Now that I have to have readers I like it even more. Worth every penny.https://store.cyberweld.com/3msp91fxwehe1.html
I don't do ****. Never had a problem. I do run internal bead locks. Requires the seam to be opposite the air valve pack . Not sure if that has anything to do with it. My PBR's come balanced.