Okay see where you are coming from now. Well one thing I have found to maximise float without a micro and not using the stopper for one handed board offs, so other hand still on the bar..is really rotate your head and body the opposite way (or exaggerate the rotate the way you have sent the kite)...for instance I do my boards offs going to the left, hence left hand left on the bar.
So I rotate my head (body follows) a hell of a lot to the right, sometime almost facing windward...board off is done facing the opposite way to travel (not in front on the bar) and as you put the board on (because you will naturally straighten up as the kite starts to redirect becuase of the pressure of your left hand (that's the key with the micro by the way, no pressure..even with your hand split across the depower rope there is a bias towards redirection as you hang off that hand), lean again in my case to the right..almost try and hang over the bar in the opposite direction (to the right in my case) to the redirection (left in my case) to put board back on. Gives you that extra bit of hang...and sometime if you get it right suspends you up for a bit.
So in essence your head, body and indeed arms..including the left have to go past the sent kite ..kite goes to 12/1230 but you've rotated to 1/2 ...which just reduces the speed of redirection.
And of course smallest bar setting and longer lines ...
It all theory though...once I leant over so far, I landed head first in the water going to the right with the kite redirection the opposite way...that wasn't fun...ah ha .
Most simple one dimensional board off tricks though a micro is not needed. Be honest I'm still getting used to mine....