i have some thoughts about the single-seater servers, drove a lot there last times. and a lot of drivers came to SS3 without having a licences and said, that so bad the SS2 is nearly empty. so i had an idea about a little changing in cars, which can follow to a better usage (imo).
SS1 - stay as it is, it's a good entry-server with the FBM
SS2 - allow FBM and FOX on SS2, so NationalB's can choose a cleaner server and they can choose beetwen the FOX and the FBM (imo the most races will be FBM-races ) - delete the FJR for SS2
SS3 - FJR (NationalA), F08 and BF1, so this would be better i think, because the FJR and F08 on one server is a good thing for setting exchange, on this higher server there should not be a problem with 3 different classes i think, especially the most track on SS3 are the long ones. and ATM there are too less International-driver, so perhaps this cold close the lack of drivers and could lead into real races from NationalA and above.
the most important thing is SS2 i think. with FOX and FBM it should be populated, atm the most drivers go to their International's on SS1, and this can be horrorible
just some thoughts, trying to improve single-seaters