If it was just me shooting them, I'ld limit the new plate to 1000+, But since I'm the only person around with steel, I let others come out and screw around. You always have that 1 person who don't listen or don't care (hard to tell the difference some times). I'ld rather buy the thicker plate and not have to chew someones ass.

JC Steel has 20" 3/8 round gongs. I have 2 that are 20-24, I can't remember. I'm not to worked up to spend the money anyway. Might buy 6-8 6inch gongs and spruce up the pistol range a bit instead.