It doesn't matter.

Odds are the driver will start going wonky after a short time, and your MS runtime will eventually decline to whatever value the driver now operates at - making the whole "charging strategy" argument moot.

My MS light now shuts off at a voltage of 7.2-7.6v (and red light even sooner). That means each cell is still at 3.6-3.8v - not even 50% discharged. 18650 cells can be safely discharged to ~2.7v. Full charge is 4.1-4.2v (8.2-8.4v in the 2S2P MS battery).

I hope you have better luck with your MS. My take on the MS is it's a light system built to the same low quality standards as a DealExtreme P7 flashlight, but a little more complex, and thus overall less reliable. Which is a worrisome conclusion if you have owned any DX P7 flashlights.