I agree with Warborg that you'll want to test out the games and set them to your preferences, as some people like faster TBs and others like slower.
However, as a starting point, I suggest you increase the sensitivity by ~2 to 2.5 times mame's defaults.
If you replace the optical encoder wheels with oscar's model 3 wheels, though, you'll be able to use numbers much closer to the mame default values (but you'll have to reverse the inputs IIRC, too).