I was hoping someone out there would know if a change of pots would help tame the lead channel on a Mesa F-30. From the factory the volume and gain controls are way too sensitive in the lower range on the lead channel. I can barely turn up to 9:00 on both the volume and gain before the amp starts blasting. I think the controls are 250k and not sure if they are audio or linear taper. Would a 500k pot give more range on the lower end? Any help would be appreciated.