It’s that newer Aerotech 98mm DMS. I’d love to play with it’s thrust file in OR and RAS Aero just to see what staging a M1378 to it does. Princeton claims an absurd altitude by simply not having a chute in a booster. Sub min or not I kinda feel sims were off.
What I really struggle with is staging certain M to M motors the OR sim gets very picky about previous burn out plus blah seconds. Some motors are breaking 100k ft at thirty seconds but not twenty nine seconds it shows a mere 30k ft. And other motors of higher impulse never break 30k ft when staged to exact same times. It’s really puzzling to me. I guess RAS Aero should be used for M3.6+ altitude predictions lol.