Thought id post in case anyone else suffers same problem:

Jack front wheels up .... with drivers wheel full lock turned right, check the drive shaft for play, spin wheel a few degree's, check for play, spin wheel etc etc till you have done 360' ......... then do the same with passenger side. That'll give you a rough idea for the state of cv joints.

In my case, on the drivers side it got to a certain point in the revolution where the shaft was very sticky for a few degrees ... turned out to be a naffed CV joint! But when purchased new CV - the original drive shaft did not fit in!? so whether it is manufacturer upgrade or not i had to get a new drivers driveshaft (which fit in with the new cv perfect!?)........ drive shaft was about £160ish and CV joint was about £60.

Problem solved though! done a few hundred miles, no judder / violent random wobble!! delighted