I use my own driver: Driver: F-8 v2 (17mm FET driver with 8 x 7135)
Used in this triple: Mod: My take on the convoy S series with side switch mod.
I’ve also used it on double voltage MT-G2 lights.
However, I’ve found that I’ve only used 2 x 7135s as the highest non FET mode. So my new replacement driver is the F4 which has no solder pads (not needed for a 4 x 7135 configuration), and it also utilizes the new OTSM method instead of traditional OTC. The zener is long gone, I use LDOs now days.