#1 you say it's ROAR's problem they have put themselves in, which, since a lot of people seem to skim posts rather than read them, is going to make people think something has changed in the USA, or ROAR was for this.

Staying with 1s makes sense right now, since there has been no proven benefit to changing the complete line up of spec motors to suit a 2s battery. This change has not been tested to my knowledge. If you are a sponsored/high level international 1/12 modified racer, you might have to change. How many of those are in the USA? Currently, to try to help participation in an already ailing 1/12 mod class, they are running 6.5 1/12 at the IIC. To me, this indicates the spec classes are more important in the US. A huge shake up of those classes to benefit the one of the smallest classes in on road would not be wise.