I wish I could see a set sometime to see them in person. I personally would never pay for something I can do and there’s a right spot and a wrong spot, or spots to remove metal.
Yeah, in your case that's totally understandable. I don't have the experience or the flow bench to truly make honest improvements. I take it you're well over $400 to do your thing on a set of the 170s, but I'd assume you're getting much more out of them. Maybe one day when I find out I have an inheritance from a rich distant relative the family didn't know about I'll send you a set of the 190s to play with. :lol: