I have several Composite Dynamics Pro-Jet E20 motors from the early 80's.
Those were VERY similar to the original Enerjets (albeit in 24mm guise)....high-performance full n-sec low-smoke motors.
I flew 2 E20-7's earlier this year in a Maxi-Alpha and they still worked fine (the delay trains worked).
In short, I like the old pro-jets....when they existed they were the only widely available composites in my area. They were extremely easy to ignite too....I always used to use an Estes solar igniter shoved all the way up to the top of the propellant grain with very short (1/4") leads sticking of the nozzle...worked every time....in my ignorance I did not know there were "special" composite igniters.

When were thre pro-jet G62's made ? Late 80's/early 90's ? Never heard of that one...I was out of rocketry from about 1987 to 1997.

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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, TURMOIL, FIASCOS, and HAVOC !