I have tried both although the XXX-CR for only a few meetings and the B4 for about 2-3 years.
I prefer the B4 as, in my opinion i can drive one quickly for 5mins in confidence where as the XXX-CR i couldn't.
I think over an individual lap there isn't much between them but over the 5 mins counts and I simply think in the majority of circumstances the B4 is a quicker for me.
__________________
Matt Osland-Jones
|