In the late 60s I got a Winchester M-101 Skeet gun to learn the game followed by one in .410-bore. Within a few months shot a 98 with the 12-ga. For almost 20-years I shot that gun and never did any better. There always seemed to be something that would prevent my progress. I shot it when I stated in NSSA competition and got a 98 in my first event and shot my way into AA. Wanting to compete in 4-guns, I got a P-gun with tubes. I was soon shooting 100s in the 12-ga and straights in .410 (something I never did with my .410 101).
If you've peaked with your present gun(s), perhaps it's time to upgrade. One P-gun in the winner's circle is worth a dozen losers in the vault.