Now you're asking the tough questions

Let's call them segue motors (seg-way for everyone who missed the segway thread on rmr a few years ago

Consider this: In most - nearly all - cases, you can fly a given model on a high thrust motor just as easily as on a medium or low thrust motor. The converse is not necessarily true. A medium sized model might weathercock badly on a B3, and a heavy one may not even get off the rod. But, barring a shred, a light, medium or heavy can fly on a B14.

So, B14's are more flexible than B6's or B3's. Niche rocketeers can put them in their Farsides while mainstream rocketeers can fly them in Astras and Alphas.

A similar argument can be made for just about any impulse range MR motors.

I don't have a crystal clear vision of exactly what will win, but I think the case for high thrust motors makes the most sense.

O/T: Chas, were you sweating pretty good along about 2:15 Saturday afternoon?

Doug