For all of you Profile heads, here is some information about the crappy bearings in the awesome hubs.
The bearing model is 680-2RS.
The Replacement model is 6802-2RS.
Profile stock these bearings in at £23 for 4, enough to fill your driver (Y)
But the amazing people at www.smbbearings.co.uk(e-mail is the better option sales@smbbearings.com) sell the bearings 6802-2RS for £12.08 including V.A.T and P+P.
So just e-mail them, or contact them by phone, for cheaper, better bearings :-