Board Thread:General Nerf discussion/@comment-34044677-20171203025158/@comment-26431461-20171203031703

Honestly, I am more comfortable opening up a flywheel blaster than a springer. Here's why:

Springers are more complicated. If you misplace one piece of the mechanism, it usually won't end well. Flywheels on the other hand, really are just a switch, a battery tray, and a pair of motors. Accidentally sever a wire? No problem, just put in a new one. Even motors aren't hard to replace, if you somehow misplace or damage them. The guts might not look as good as what they did before, but they will still work just as well. Now, springers are much more picky. They have way more mechanical locks and other nasty bits that are easily lost. Not to mention, some of their parts like the catch or trigger also spring out when you open it ("springer", haha bad joke).

Flywheel mods just require a bit of electrical knowledge. Not even that much. Basically all flywheels have the same configuration. Springers, not so much.

So IMO, if I were you, I would be much more scared of modding a springer than a flywheel blaster.

Yes, you should definitely start with IMRs. I haven't watched the MTB beginner guide, but knowing that they are from down under, they probably know where to get these upgrade parts for cheap.