My #1 would be manageable field sizes and overall prices.
Lots of club racers do not have the race craft to be thrown out there with 30-50 karts on track and those same club racers end up junking equipment at a higher rate when starting out. In general aim for 20ish karts on track and no more than 30 on track at a time.
I am also not a fan of traveling Thursday and Monday to practice Friday and race Saturday and Sunday. It eats 2-3 days of vacation every race weekend. Depending on field size and number of classes you can do 1 or 2 days of racing. Smaller field and class count regional series should be 1 day racing only. Larger series necessitates 2 days of racing to make it all fit in schedule.
Don’t do a full day of practice on Friday!!! Having people pound out 5-6 sessions of practice the day before the race weekend adds cost and vacation time.
Figure out how to fit 2, maybe 3, practice sessions into a race weekend on Friday evening or Saturday morning.
I think the classes is geography dependent. Most anywhere in the US you should run 206 and a 2-stroke category at regional events. You can’t do all the 2-stroke classes and make it work. The 2 stroke classes will vary based on where you are, but most likely be KA100 in most locales.
Maybe shifter or X30 if you happen to have a bunch of those guys in your area.
Also no kid-karts at regional racing. I know some kid kart parents that will be livid at that, but a proper sized regional track is too big for kid karts. The kids are awesome, just not on a 3/4 mile track. Let them have fun and learn some proper race craft at club races before hopping in a Cadet kart.
Distance between tracks will depend completely on location in the US or world. I am in NE TX. So tracks for me are all far apart. We have 2 tracks in Houston, 3 in Dallas, 1 in San Antonio, 1 in Waco, 1 in Midland, 1 in Amarillo, 1 in Oklahoma City, 1 in Tulsa, 1 in New Orleans. Not all of those tracks can support larger fields of racers though. The tracks range in distance from 9 hours to 2 hours away from me. Heck, I can travel to Garnett KS to race in the same amount of time it takes to go to Midland, Amarillo, or New Orleans…Texas is just big and spread out.
Run some hard Evinco Blues, or harder. Make the tires rules such that you are limited for the series such that you have to use tires for more than 1 race weekend. For example, allowed 2 sets for 4 race weekends.
Potential weekend, assuming KA SR and 206 SR are only LCQ classes.
10 classes - Cadet 1 / 2 / Jr / Sr / Masters - 206 / KA100
3 rounds practice - 6 minutes/session
Saturday Practice: Practice 8:00 am - 12:00. 3 Rds, 6 minute, 2 minute between
Saturday Race: Race 1:00 pm - 7 pm. Qual (6 min+2min). H1 & H2, 8 minute ea, 3 minute between, 24 sessions total
Sunday Race: 8:00 am - 2:30. H3, 2 LCQs at 12 minutes, Finals at 18 minutes
For large fields:
- Run qualy with split A/B sessions using random draw
- Run 3 heats with A/B/C/D heats
- Have LCQ/B Main for bottom of field
- Finals