hi marty im using ibanez rg2550 ;marshal 50 watt and i want to improve my distortion.my goal is to get lead and rhythm like the one in rust in peace and countdown. do you recommand the boss gt6 or gt8 for this purpose ? or it will be better if i will buy a very quality distortion pedal like radial tonebone or line 6 DM4 (some tube distortion pedal) wish to see you playing in israel kobi