propellant. Tripoli EX rules specifically state that you cannot modify a commercial motor to make an EX motor. If you start messing with a commercial motor (basically changing it in ways not described in the manufacturer's instructions), you make a franken-motor that cannot legally be launched at any NAR or TRA launch, sport or EX. You can of course launch it at any private launch, assuming you follow any other government rules such as FAR 101.
Well, even if I got the letter of the rules wrong I at least got the intent right. It's not a certified motor, which is how I should've worded it, and taking something like that to an official launch is begging for problems we don't need. I _was_ thinking about a private launch, if all else can be adherred to when the time comes. Guess I just have to try it someday because I can, even if it costs me the rocket in the process.
I am not saying I agree with them.)
And it seems I've joined the throngs of those "often-ers". Thanks for the correction.
Chuck