A friend of mine has a 98 TA, with the Spec 3 and updated hydraulics.

Here is the problem:
!st gear, you can launch and run as hard as you want, no slippage.

any other gear more at low rpms when you give it the gas it feels like it is slipping badly, then it will grab all the sudden.

Any ideas what would cause this, I am guessing something to do with hydraulics?

Thanks