Any owners of the Sansamp three channel programmable unit have any tips on adjusting the sounds? I find that this pedal worked ok when I originally bought it, but it seems that now when I have a sound I like, it does not seem to change at all when I adjust the settings. I know that its not in bypass mode. As a result, I try to reset it to the factory settings then adjust my sounds on each channel from there, but adding more drive or presence doesnt seem to do anything, even turning the gain know doesnt seem to do much. Getting the unit back to the original three settings seems to be a chore, as I have only been able to do this once. I do not have a battery in it, I am using a AC adaptor on it. I have attempted a search on line and here on talkbass, but havent come up with anything, so if any one has any tips or can point me to a good online reference, I would appreciate it. Thanks!