I understand why you've included a high power class and in terms of promoting the sport in NZ and I think it's a good idea.
With 4 targets in a lane there's always the danger that people from either class might accidentally shoot at the wrong target. What are your plans for making it obvious which is which? Different design of faceplate shape for example and/or of a completely different colour to each other perhaps?
Another concern would be that if a 28fpe rifle shooter were to accidentally shoot at a 12fpe target that it might damage it for the subsequent 12fpe shooters. Any plans on how to deal with that situation?