I use the V1 (TB) dampeners in the V-2 head. Works really well, but it's a b**** to get em in there. Regardless of how nice I am, the kinda 'squish' out a bit, but they're hella stiff, so no complaints.
The V1 uses the 3mm shaft, so if you got the V2's by mistake then you're kinda screwed. Sorry to blunt, but it's the truth! lol