oh... i thought you were using a metasonix VCF... no idea if it'll emulate the organ, but you'll probably get some funky tones out of your oscillator. you're the first person here i've seen that'd put one of their modules in their rack. i can't abide by the mismatching yellow, so i'd stick to their VCA. i think you'd get more tube sound with a tube filter than oscillator, but then again, you won't get the same "misbehaving sound" as metasonix's S-1000 wretch likes to make some random howls.