Had three or four gear change levers replaced under warantee. The latest one is a much harder and more shiney finish (earlier ones were softer and more matt, a bit like tyre rubber to look at). This latest one has had no problems with splitting.
You'll probably find Andy that they'll just point you in the direction of another dealers as all 3X want to do is sell the bike and have nothing at all to do with the servicing side of things.:rolleyesI guess a visit to double cross, I mean Three Cross will be in order!