Pete, the MKL regatta is a very old very established event and well pre-dates the GYC regatta. You should probably pose the question to your club.

It's my opinion that all events try to avoid conflicts, but conflicts do occur (the spring is a popular time of year in FL). In the case of the GYC event it's traditionally been a F16/A Cat only regatta and since those fleets don't typically do the MKL (with the exception of the Miami A's) it hasn't been an issue. I also doubt that if the GYC and MKL events didn't conflict it would make much of a difference.