Well, in the end I did go for the Sigma one. Neil was coming for the Portuguese GP and he so he brought it with him. (had a nice chat/ beer with him on the nice hotel he was on. cheers Neil
)
Feels very good for the few kms I did with it, the real test will be on track next monday.
Thanks all for the info you guys posted (here and on VD, etc). Sorry if I started an argument. But it wasn't my fault
Paulo