Rikki,
Try a style that has much different sounds on each OTS.
Hold down say a G chord in RH...start the style, use Var A, then B, Then C, then D the sound changes as soon as you activate the new OTS. SO, If you want to hold a note that has a Tie in the music from one measure to the next..you can't as the OTS will change when you change Variation. IF you try to hold the note bad things happen...abrupt off/on of the sounds in RH.

However if you do not use OTS link, Hit the new VAR at the measure change.... and you hit the new OTS when you take your hands up (anytime you want), then play the next note its OK.

So the issue is with OTS link function timing....