This is a very useful plug-in and I am finding many ways to use it to good effect, so first of all thank you and nice work!
I appreciate you addressing the issue where only Slots 1-10 were saved with scenes.  I was coping but it is great to now have access to all 99.  I am finding it convenient to use groups of 10 Slots to organize the force sets into progressively more intense versions using the same move targets.  For example, using Slots 1-9 Hip-to-Hip, 11-19 for Head-to-P..., etc. but with increasing frequency, force, torque, and often other modifiers.  Dialing down the ChangesFromSliderSpeed setting I find I get smooth transitions, up and down the intensity scale, that I can trigger based on other things happening in a scene.  
I set Slot 10 to no force or torque, and switch to Slot 10 when I want to stop all forces - I find this provides for smoother transitions starting and stopping the application of forces.  Using the plug-in Enable flag, in contrast, often causes weird transients that mess with suspension of disbelief.  I wonder if others have experienced this and whether there are better workarounds?
One feature I would love to see is if we could enable more than one Slot at a time.  You seem to have anticipated this by providing a separate 'enabled' flag for each slot.  This flag only enables / disables the forces that Slot is set to, though, and only the Slot selected in the slider "plays" at a time.  Furthermore, I cannot seem to access the flag for each slot separately from other plug-ins, notably TimeLine.  Any plans to enable multiple Slots to play simultaneously, or would doing so create too great a performance issue?
Thanks again for the great plug-in.  Please do not take my comments as any sort of criticism - just wanted to share my thoughts on how I might make even better use of this one.