Depends on motors. Stock motors, those trustfires might be okay. Any sort of replacements, I would recommend a better battery chemistry.Since you can get three 18650 trustfires(3-4A max discharge) for the price of an 18650 IMR(10A max), would it be reasonable to use three trustfires in parallel for the same current as an IMR but three times the capacity?
It would probably be impractical in a stryfe since you'd end up with 6 or 9 batteries, but I'm thinking of a homemade.
Their current discharge rate will not increase, FYI, but their mAH will add up.
180 motors can pull A LOT of current, I think someone said 60A stall current? I forget. That's WELL past the current discharge rate of a Trustfire, thus you're not really getting any rev up benefits, and may even damage the battery.
There is definitely a limit to the capabilities of flywheels, as I haven't been able to hit significantly over 120 fps without either melting darts or melting flywheels lols.