Handful of CAT SX2 Questions...

[autonm]

Ive had a B44 for over a year now and back then the choice was between that and the CAT SX. At the time I read/heard setup issues etc on the SX so thats why I went for the B44.

One year later and the SX2 is out. Im tempted with the SX2, but I personally dont know anyone with an SX2 so any answers from Oople people would be great.

1. Whats the difference between the SX2 PRO (rrp£319) and the SX2 Race (rrp £269) - is there really £50 worth of difference?

2. Is the SX2 easier to setup, adjust, or less setup problems than the original SX? I know with my B44 after a club night of tinkering, Ive hardly had to adjust anything in a year. Where as I know with the SX some club mates spent weeks before they were even near to happy with it.

3. Whats the biggest difference between the SX2 and the SX? Big bores, different materials on a few parts - how do these make the drive better?

4. Does the SX2 uses the same spare parts as the SX? or are they a total different set?

5. For owners for the SX and SX2 - can you tell the difference between the 2 when driving? Im thinking that if they are the same and I want a feel for one I could try out a SX at the club.
Thanks for any answers.