Any sort of set regen would be better then the current system in my opinon
as it stands you can't start regening untill 2seconds after you do a special move,   not saying thats the only time you regen but say you do 4 moves in a row,  the time between start and finish of those moves even if it has been say 8 seconds to perform all moves,  you haven't regened a point of end.  as opposed to doing a move wait 2 seconds  regen,  then do another then wait for regen to start