How you do your tank setup is entirely up to you, but I think you are making this too hard based on "aerobatics later in a given flight". Most aerobatics are done in positive 'G', in which the pickup clunk is at the 'bottom' of the tank all the time regardless of the orientation of the aircraft. I guess if you want to do inverted (negative 'G') passes very late in the flight, then maybe you are concerned about the pickup clunk being bathed in fuel. BUT - you also presumably have a 4 ounce UAT that should take care of momentary fuel flow issues. Like I said earlier, the scheme I posted worked for me with no problems, and I like what works. Up to you; my last post on this topic.
Regards,
Gus