hi there. i have a sr4 wich i love like my own baby. unfourtounely it is giving me bad times. when i roll the treble half or full position theres a buzz. if i touch the strings, bridege etc. dissapears. so i took it to a tech. guess what? accordyng to him nothing was wrong. he checked connections for grounding problems with a tester. and nothing. he checked for cold solderings. nothing. everyting was right. at last he states the most sad thing " that pickup or the electronics are not that good" more or less, it was a cheap pickup. he let me down. what do you thing about this. and i was there. he checked everything. and the saddest thing was he plugged this piece of %$#$% bass and was pretty quiet. also he said maybe that preamp is very sensitive to high frequencies. ?should i take it to someone else (he was not a luthier) but he really knows about electronics. or just sit down and live with it is it normal? tahnks to all. do you guys get some hum-noise when your treble is at top. noise comes when i dont touch strings etc.