SFB is a products of the gaming industry in the '70's and early '80s. Tedium was practically required by law. Considering the amount of paper me and the Guv went through playing the FASA ST combat game in our youth, I have trouble wrapping my head around the idea of how much dead trees and time it'd take to play out one of those really big SFB scenarios on a table.
I'd play this with ya' if it was free, Andy, just to give it a try, but not so keen on a subscription fee for what amounts to a time-saving device. $79 for a year will get me an iRacing subscription.