I am planning on racing the Utah CX series in its entirety this fall. I raced a few races last year in that series as a 45+ ( I am 47) and that group is an open category with 2 former national champions and so the race was more of a solo TT. I could race the 35+B (cat 3, 4, 5) and then I could actually have races within races and work on tactics and race in traffic. I have raced that category once before with one 2nd place finish. I am not sure what grouping I should consider. Are there other factors I am not thinking about that would make the series fun, competitive, and support improvements in skill?