Ok for Rocket motors we have 2 majors player in Canada, Angelo for CTI and Pavel for Aerotech, both guy are friendly to do business with and the service is top notch. Pavel keep Aerotech in stock and reorder 2 or 3 time a year, that means if your favourite reload is out of stock, you out of luck, so you have to plan in advance your season. With Angelo, as he said; he is at 20 minutes from CTI, that means his inventory is the CTI inventory, just give him a week to check with CTI and you will have your order, if CTI have stock. From my experience and many others, Angelo is very quick to respond to email, just ask him what you need and you will be setup in no time. Jeroen the CTI chemist is very resourceful on this forum too. CTI + Angelo = a winning combination.
Have a look to the Mid Power CTI sellection of motors ( E-F-G ) , the 24mm and low 29mm list is very impressive. For us Canadian, the F-240 is a hell of kick ass motors, it's sound like a motar. short loud burst.