[Azathoth]

I agree with Ty that sub C NiMH are the better route if you want a "high" RoF. You cannot fit a high quality LiPo into a M4 buffer tube that will get you anywhere close to what a SuB C will get you.

I have to slow down my motor 40% on the trigger master to get the RoF down to a reasonable level with my current setup. That includes locking auto to the 1 second delay and changing auto to burst fire.

To the original OP:
I could be wrong but I doubt your motor has the torque or power to deliver the RoF that you desire. A LiPO battery hooked up to a Element/Supershooter/G&G/ICS/Kraken/AGM is not the solution to high RoF. You will need a motor capable of turning fast enough and with sufficient force to drive a M120+ Spring

Also if you are going the MOSFET route make sure your MOSFET does not have active braking enabled especially if you are using a quality motor. You can burn out your motor very quickly especially the higher power motors if active braking is a feature on the FET (in some it is a feature).

For Trigger master users. Talk to Terry, Mike and Don, and make sure that if you are running Systema Magnum (do the insultation mod to this motor), G&P 160, Tienly or equivalent motors that you have the 3.9 version of Don's board. I asked him to include the active breaking disable feature in that revision.

For most people LiPo is the short cut to getting better trigger response. LiPo is like racing fuel for AEGs. If your system isnt optimized for racing fuel you shouldn't be using it on a long term basis. If you want better trigger response. A high torque motor that can deliver high RPM plus a power source that you want will give you better RoF, and trigger response. Airsoft LiPo Madbull lifeopo excluded) are total trash or horrendously overpriced.