Board Thread:Questions and answers/@comment-33092097-20200318180902/@comment-30049823-20200320204621

If you're only concerned about rate of fire (and not muzzle velocity), then a moderate voltage increase on the Stampede is all you need.

On a Rapidstrike, there's a separate motor driving the pusher, so you could have a completely independent circuit for that and just leave the flywheels and cages alone. The trigger switch could apply power from a completely separate set of batteries, to power the pusher arm. Then you just soup THAT up without spending any money on cages or motors.

Like Elliottw has said multiple times, you're going at this BACKWARDS. Start the conversation with WHAT DO YOU WANT TO IMPROVE, and THEN figure out what to buy to accomplish that.

You could majorly upgrade the rate of fire of a Rapidstrike with a couple 9V batteries you already had lying around the house and some quick wiring changes with a soldering iron. $0.00.