Trilobyte - Yes I have two Audio Inputs on my C64, one assigned to each SID, and I meant instrument, not sample. I can't imagine using samples with only 64k or RAM!

Karlos - That worked, also I sent you a PM about previous help you sent to me.
Vegas - I was going to keep my stock C64 and add a second SID chip. The one I was going to sell, was the one I had custom built. Sadly the guy who did the MOD kind of vanished on me so I have this great and expensive gear with little knowledge on how to take advantage of it's extra tweaks. Most of those knobs don't seem to do anything, like the MSSIAH knobs.
I never had a clue what they do exactly or how to make use of them. Does MSSIAH have something built in that caters to that?