i have a question about my setup. when i am on the overdrive channel on my amp, i get a high pitched squeaky feedback, and i was wondering if this could be due to my pickups. i play a prs ce 22 through a marshall jcm 800 head with a 300 watt 4x12 marshall slant cab if that makes any difference. i realize that the problem might be that i have the gain turned too high, but is there any way to fix this problem while keeping the gain where it is and without a noise gate? any help would be appreciated. thanks!