Sorry I could have explained better. I meant matching the cylinder to the case but then that got me thinking of also widening both to be like the a52 case size. Im more looking for smoother fast acceleration to the available top speed that unlocking more on the top end. If it ended up giving a bit more top end that'd be a bonus. I realise they're so many variables to take into account but right now the ports on the airsal don't match the case.