I've recently been trying to get to grips with ACT, it's about time 
 
However, as I have discovered, while you can map the controls of a VST in the effects bin to your controllers, you cannot map the controls of a VST in a ProChannel FX Chain. Is this correct? If so, it seems to be a ridiculous limitation. If like me you do everything in the ProChannel, it makes ACT absolutely useless in terms of mapping controllers to 3rd party effect parameters. 
 
So next I figured OK, so I'll create an FX Chain control and assign it to the VST parameter in question. Okay, I was able to do this and the control showed up in ACT. However, when I turn the rotary on my controller past a certain speed (really not that fast), the corresponding knob on the VST turns in big jerks and not smoothly as you'd expect. It's therefore useless as a performance control. Why is this?  If I assign a rotary to a synth knob with remote control (not using ACT), I can turn it as fast as I like and the synth knob follows my movements smoothly and faithfully. Is there something wrong with ACT in this respect? 
 
Above all, you should be able to directly map the controls of ProChannel FX Chain VST's to a controller using ACT, just like you can with a VST in an effects bin. Is this a bug or is there some reasoning behind why you can't do this? Because I'm pretty sure the average user is going to think there should be no difference between effects bin plugins and FX Chain plugins with respect to ACT. 
 
Would appreciate some feedback from anyone who's had more success with all of this 

So it seems that the problem with jerky knob movement is only an issue when I'm using ACT to control ProChannel FX Chain controls. Has anyone else noticed this? They only move smoothly if you move the control very slowly. Any faster and they just jump around in big jerks. 

Update - I've found that the jerky knob problem affects different plugins differently. For instance, if I set an FX Chain control to a knob on Native Instrument's Driver plugin and then map a rotary to this control via ACT, it moves in big jerks both in the ACT interface and on the plugin. If however I do the same but with Ohmicide, the rotary moves in jerks in the ACT interface but moves smoothly in Ohmicide. 

Sharke, even recently you couldn't use act on those nobs at all. It's nice to know it's working now. In the video in my signature where I demo act using a foot pedal with TH2, I mention that I can't get it to work in Pro Channel.

Yeah I think you mentioned that in a past thread as well? I read a couple of relevant threads last night. The FX Chain control knob ACT functionality seems to need some kinks ironed out - for instance, with my A-PRO, control knobs will only map automatically to the first 4 rotaries. After that, I have to use ACT Learn to map further knobs. The other annoying thing is like I say, some VST controls will respond very jerkily to the controls to the point where they're unusable. 

Yep. It's got kinks. I just bypass it. I find I have trouble even mapping more fx chain nobs to the settings in the control window. It doesn't work so great. And for the nobs on the FX chain, if you move them you move the controls in the target effect, but they don't work the other way around where if you directly move the controls in the effect it updates the FX chain nobs. So you can't lose track of where you were tweaking or things get out of whack.

I was going to suggest trying to use the "Assignable Controls" feature with ProChannel, but now that I've checked it out I see that it doesn't seem to be possible.
 

Kev999
I was going to suggest trying to use the "Assignable Controls" feature with ProChannel, but now that I've checked it out I see that it doesn't seem to be possible.
 

 
For the life of me I don't know why FX Chain control knobs aren't compatible with remote control. Assigning plugin controls to controllers is a mess in Sonar compared to how it is (allegedly) in DAW's like Abelton. I'd love to see a major overhaul of this in a future version. 
 

ACT drives me nuts.  Every now and then I can get things setup the way i want but then it will just stop working

Idk I think act works pretty well. The only problem I have is with FX chains and mapping to those nobs. I kinda think the FX chain nobs are only partially implemented. Like if you turn the nob on the effect, the FX chain nob doesn't follow.