Board Thread:Questions and answers/@comment-27158360-20160215031443/@comment-27306930-20200410204431

Both the RapidStrike and the Elite HyperFire run best on two IMRs. No other modifications are necessary, and the lifespan of the blaster will not be significantly reduced. It's very safe, and quite fun.

That being said, both the RapidStrike and the Elite HyperFire can run on three IMRs. In order to do that, the thermistors need to be disabled. The performance will be greatly improved, but the lifespan of the blaster will be significantly reduced. Some nerfers say their blasters only last a few months with "normal play", others have reported they can last as much as a year. Either way it's just a matter of time, the blaster will eventually die. The stock motors and switches simply can't put up with that kind of punishment for very long.

So unless you're a modder who's comfortable replacing motors, wiring, and switches, I suggest running your RapidStrike or Elite HyperFire on two IMRs.