You can also use 'Channels' for controlling the Rotary speed. Copy your 'A' channel to 'B', then set 'A' to the slow speed desired, and 'B' to the fast speed desired. Now just setup the 'Hold' function to toggle between Channels 'A' and 'B'. The stock settings will cause it will ramp up and down at a rate of a little less than 1 second.
This did the trick but is there a way to get it to revert to the "Primary" channel when the effect is bypassed?
For example, I currently turn effect on (fast speed is primary)>Hold function to toggle channel (Slow speed)>bypass effect
At this point if I turn the effect back on it will be at the slow speed.