I would use page changing for now, originally the purpose of page changing was instantaneous switching between setups which was to be an improvement over "mode scrolling". But then the first person shooter crowd said, hey, bring back my mode changing (blink.... blink blink.... blink blink blink). So our main purpse of groups and multiple (up to 10) runes within a group was to emulate that old school mod style of scrolling through mods.
Changing the way group scrolling works is pretty low on the priority list at the moment. Later this summer when we start improving the client apps we will have a menu for "calibration" and other system settings; we could make the LED blinking during group changes a programmable time setting (instead of a fixed time setting like it is now) then you could set it to some insane fast blinking.
Got some other bigger bugs to squash at the moment and some big features missing (namely macro recording!) to focus on for now!