Several comments:
1) if you want 8+ motorised faders and no troubles, you better go for the original Mackie device. Some users have reported success with BCF (the faders are not touch sensitive), but not with QCon or SSL. No reports about Behringer X-Touch yet. VS-700 is (still) an another option. In case you think one fader is sufficient, Faderport or (discontinued) Alphatrack are know to work fine. More than one good motorized fader means in any case: expensive, big and heavy. MCU/BCF/X-Touch are working throw the same old MCU plug-in, no ACT, no ProChannel.
2) TouchDAW (better Tablet version) is good to see what you get with MCU (it works throw the same plug-in)
3) endless encoders are an alternative for motor faders. They do not "jump", are small, not moving on themselves and are relatively cheap.
4) normal knobs and faders can be used it "catch" mode, so you will not experience jumps but you should put them "in position" before they start changing the parameter.
4*) in case you are brave to try my plug-in, normal knobs and faders can in most cases control parameters instantly and without jumps (but loosing in resolution at the beginning) or they can be used as endless encoders (also with some caveats, there is no magic involved).