Forgot the first labeling of the re-branded Coaster motors by Centuri was Atlas/Hercules.
The 20, 30 and 40lb Coaster motors were thrust-LEVEL, and NOT lb-sec total impulse.
In the late 90's/early 2000's there was a company that made G and H SU BP motors and even BP 'sparky' motors !
The exact company name slips my mind but I think it was something like Rocketflite. I'm fairly sure they were 38mm cardboard-cased too.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !