Went out on a limb this weekend and requested an upgrade to cat 4 based on my 7 races to date - and was approved . That suddenly gives me a wealth of choices for upcoming races - instead of only qualifying for the cat 5 race, I can choose between Cat 4/5, Cat 3/4, or masters. I'm considering this race: https://www.bikereg.com/Net/15528 . Not interested in the Cat 4/5 race (I want the wall ), so it's between 3/4 and masters 40+. Between the two, the masters race distance (12 km shorter) is a better match with my current/expected fitness level - but am I going to regret choosing it? I've read all the comments about masters fields being brutal, was wondering if there's regional variations or pretty much to be expected anywhere.