Is there a natural progression (per the rules) from STS to STX? In oher words...I'm in G-Stock now, as I start modding the car could I hop to, say, STS next, stay there for awhile, get the mod bug again and then transition into STX? I know, I need to get a rulebook. But off the top of your heads, would this allow for the typical SVT mods while staying within Solo 2 rules?
Much Thanks,
Randy