Not an expert on Busas but you say oil pressure is low. Is this at revs when hot or at idle when hot , or when cornering or braking ??
My BEC , a blackbird, runs very low pressure when hot at idle ie at 100 degrees 1500 rpm oil pressure can be only 15 psi. However as soon as you blip the throttle oil pressure wangs up to 66 psi from 2500 rpm and beyond.
Oil temperature for a fully synthetic can go quite high on bikes . i spoke to a bloke at Rock oil about this the other day and temperatures of 110 deg plus are common.
If i pull away at idle the engine can drag down to 1000 rpm and i can get 5 psi and alarm lights on my Stack. This is nothing to worry about apparantly.
However if your oil pressure is falling at steady throttle openings say 3000 and above rpm then that is a cause for concern, granted.
Maybe speak to Rob at Mistral or Holeshot Racing for clarification before you face a hefty blow up.
Best Neil