Take your pick.
arcade_15
arcade_25
arcade_31
arcade_15_25
arcade_15_25_31
There's also r666b which is supposed to be designed against the specs of the chassis.
To be perfectly frank I wouldn't use any tri-sync preset for this chassis and would treat it with kid gloves, using arcade_15, arcade_25 or arcade_31 exclusively rather than having it switch sync all the time.