It’s not uncommon to run a thicker paddle. I try to run the thinnest one that will run reliably for two reasons, one it will run slower and two the paddle takes less of a beating and last much longer. I have over 3 thousand rounds on one and still going strong.
Basically if it passes the function test your GTG, let the carrier go all the way closed with the trigger pulled back, try it slow and a little faster the hammer should not drop. With the trigger pulled back and the carrier closed open the carrier about 1 to 2 inches and let it slam closed the hammer should drop.
Over time you’ll get a good feel for it and be able to adjust and feel more confident about setting it up. I think the only time you may have a problem is if it drops the hammer when closing it slowly, which would be too advanced.
I have three guns set up and all three can run with the same paddle; but I prefer to change paddles. One runs best with a .028 and the other takes a .034 if I run the .034 in the set up that needs the .028 it will bend the paddle and run very erratic and may not trip the hammer.
If you’re not sure about the proper clearance needed in the lower I would highly recommend M60 joe to do the work at least on the first one. And don’t forget to bring an H2 buffer if running the collapsible stock with you on your first outing, because more then likely you’ll get bolt bounce.
Good luck and glad to see one more join the RLL club,
your wallet will regret it.