How high should |I fill the oil level to on my hayabusa engine .. i am running an accusump also.
i see some talk of overfilling the oil ...

The acusump will suck up oil when pressure is reached lowering your sump level, it is recommended to rev the engine which fill the accusump then refill the engine to the required level before thrashing the living daylights out of the car.
With the accusump in place and filled your oil level will increase and decrease as the accusump works, that said it should only work if you have an oil pressure problem caused by badly baffled sump or other oil system failure, you should then stop and fix the problem.
Accusump is an engine saver not an on going solution to a problem

how will i know if the accusump discharges??

Oil pressure guage will go from low to high as the accusump pushes pressure into the system

An oil pressure gauge would help the as I am just running the standard buss clocks