dweller,
I am just now learnig to use spoilerons. Will the plane fly out well enough to give you time to switch out of spoileron mode pretty comfortably so you can make the switch? Being fairly new I have a tendency to fumble around a bit looking for my switches. I put all of my control surface rates on the same switch just to the right of the triple rate switch you are using. That way I fumble less. Its finally starting to get automatic switching back and forth. Plus I have enough expo in my high rates that all I really use low rate for anymore is takeoff and landing..