Voltor, I have a microwave XT and an LP and they are just lovely together. Assigning the the LP's mod wheel to any parameter on the XT seems to feel OK to me. It's MIDI, so I suppose there could be some perceived lag, but it's plenty quick for me.
Really, the XT is a mad science machine.
It lets you use all sorts of operations to modify the internal control signals. It has an 8 stage, loopable envelope and so many awesome ways to shape the modulation signals. I rarely need to make super accurate control movements because I can create so much animation just by programming it.
The sound is very unique as well. I have a Virus TI, and while the wavetables are more flexible, complex and generally "better" sounding, they don't have that glitched out, fizzy, crunchy, awful harsh awesomeness that only the XT can provide. I almost sold it to buy the LP and I am SOOO glad that I didn't.
Wow, totally off topic with all the Waldorf chat.. OK, so on the subject of stereo MF-101s- I would like to experience this, for sure. I did try something similar using my LP and single MF-101. Basically, I use the audio in on the LP, use its filter and then modulate its cutoff with the Env Out on the 101 to get the other filter. I set up the filter on the LP to sound as close to the 101's as I could. I know that technically they are both Moog ladder filters, but they sound very different. The LP is a little grimier, in my opinion, with the 101 having a wetter, juicier sound. Regardless, with no overload or drive you just have to tweak the resonance to get them sounding close. Subtle offsets of the parameters between the filter units give it a really cool sound and stereo image.
idea: use a 107's Env Follower to track drum pattern (or something rhythmic), multiply the env out with a CP-251 and use that to control the filters. S&H that CV for stepped stereo moog filtering.
God I love this stuff!