???.....could have been a good thread. A lot of juniors have a lot of questions and are uncomfortable about asking them most times. This is the kind of place to ask. Most of us have been there and honestly I lost a lot of years because of a lack of understanding and support.
He was just asking if Cat4 is adequate if racing juniors or something. More than adequate, to be honest. I mean, I got lapped in my first cat5 crit in NorCal yesterday but stayed with the group throughout the junior race.
It was a confusing OP to begin with and I was simply commenting on the fact that he said his TT times suffer because of his non-carbon frame.