I asked Banshee about boost dropouts and got this answer, think it’s probably OK to share:
“Oh, don’t get me started on all these stupid ‘standards’ that the big brands come up with to make more money… it’s a pain for people who are buying parts, but imagine what it’s like for designers like myself who have to keep making changes fo n real reason…. rant over! haha
I don’t plan to make 148 boost dropouts for the current frames if I can avoid it due to cost of opening new forgings, however as always, if there is enough customer demand I will supply what people ask for. you will not feel any difference between a well built 142 wheel and a well built 128 wheel. Sure a test machine might spot 3% difference in latteral stiffness, but a rider really will not considering that 1psi difference in tire pressure will have more effect probably.”