CTI: Flown two. Bought the cases used, got the 5G for almost nothing.
Pro54 5Grain K600. After flight the casing was stuck in the MMT. Took two of us to get it out and damaged the rocket
Pro38 1grain G115. Motor CATO. Didn't hurt the rocket but still...
Easiest to assemble, lots of variety.
I have no desire to purchase any more of their hardware....maybe a Pro54 1grain (and less likely Pro98 1grain) because I have a thing for 1grain motors
All require HAZMAT to ship. Smaller loads seem really pricey.
Loki: Flown several. Bought the 38/240 used, the 38/120 was gifted to me.
I had one 38/120 cocktail (G69 maybe) where the ejection charge went off while the motor was burning, melting the rocket.
Easy to assemble -hardest part is the delay with all the Orings, not as much variety, requires tools to assemble, motors are "angrier" than the other guys, snap ring hardware is simple, reusable nozzles need cleaned-not difficult, doesn't include starters, 38mm is smallest they make
Hope to get into their 54mm stuff and would love to L3 on their 75mm. Still want a 38/480 as well.
Many 38mm can ship without HAZMAT
Loki Cocktail is always a crowd pleaser
38/120s come in 2 packs, are cheap, good variety, and are stupidly fun. Lol
Aerotech: Flown too many to count. Most hardware was purchased used which is why I have so many. Flown 29mm F through 54mm J
Had one 29/40-120 F reload, forget the designation, where the ejection charge went off while the motor was burning, severely damaging the rocket
Most difficult to assemble and clean-but not actually difficult-hardest part is the delay, good variety, can be bought at discounts
Still want the 54/1706, though I keep passing on some good deals.
Many 29mm and 38mm ship without HAZMAT
Mojave Green is usually a crowd pleaser, buy extra starters
My vendor, Chris Short, carries all three. He comes to two of our four annual launches.