It's regional. Our 30+ and 35+ fields are the largest. Followed by 40+. It was enough this year to warrant having a 30+ 4/5 only field AND a 30+ 1/2/3 field as well as a 40+ and 50+ that are run together.
Big discrepancy here between 30+ 4/5 and 4/5. Guess we are busier at a younger age around here than what you guys experience.
FWIW - out 30+ 4/5 fields are pretty much the only fields that are almost always sold out. That and Cat 5 obviously.