Looking around at different rulesets in the US, there are quite a few clubs that run a 100cc class that is open to both KA100 & ROK VLR engines (we do as well in OVKA), but I notice that in some areas, the VLR gets a 5-10 lb weight break compared to the KA100, while in others they run at equal weight.
Does anyone here run somewhere with a good 50/50 mix where the Balance of Performance seems right? We only get a couple of part-time entrants on the VLR, and 12-14 regulars with the KA, and they seem close while running at the same weight.