Hey Jazz

Thanks for the reply mate.

As you know I've already got the 2.2kw so won't be swapping now but really my question was how come when the vfd gets involved the rules change regarding how much wattage you can tap the 230v for. I've got a Festool OF2200 and that's right on the limit of a 13A socket, I've tripped the one's in the tin shed on the rear garden with it a few times.

Oh btw the Z has been beefed up. The spindle and back plates are now 18mm and there's supported round rail in there too arranged as you demonstrated when you were around here - higher the Z axis, the less the lever action.