Why not sell the gun, use the money to buy a similar one in 16ga and shoot 7/8oz loads in it. Of course you can't use a 16ga for 20ga registered skeet events(okay for 12ga events) but you said the gun was for quail anyway so you would be dollars ahead and shooting a proper quail gun to boot! My favorite quail gun is a 5lb 9oz 16ga 2 1/2" which loves RST 7/8oz shells. Apparently your gun is already flawed by shortage of triggers.