Only thing that put me off on the Sirius kit, besides the cost (NICE kits are expensive, after all) was that I would need to be at least a level one to launch it Hi-Power. If I built that thing to that level of detail, I don't think I could bare to launch it.
I go thru the G's. That's it. Anything else is just too expensive right now.
It is a magnificent kit, though.
But the Apogee Sat V is, too, and I don't need a level one to launch it!

UC, the E15 is a more 'gentle' launching motor; the E30 has a little more punch to it.
I like both!

Allen