Yup, the T2 has PWM, but I can’t notice without camera. The same goes for the Jaxman E3 (not E2L), that has PWM, but is quite good driver for AA cells, no memory, good ML and good levels on M and H!
I used that driver to mod the Sofirn SP10, along with a XML2 T6-4C to use with AA cells only (muggle friend 
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The Jaxman and Convoy are better than the Sofirns to be modded ! I’m just planning , not hands-on yet 
About the SF14, the only thing I can remember about it (according to a member, I can’t exactly recall who, said - maybe AA Cycler ?) is that the runtimes are not as advertised: Sofirn SF14 - Misleading Runtime !
Other than that it is very versatile to use with both kinds of cells as you mention!!
Yup, I modded the SF10 with BLF X5/X6 driver + Luxeon V 4000K + TIR optic, and the SF14 with the same driver + XPL2 (bought in Sofirn store) + stock reflector!! They only use 14500s (Efest IMR)!
I once bought 3 drivers from Rey to mod some lights. They were spares from the first batchs of the Pineapple Brass. Maybe he can sell some of the new ones to you, try your shot by sending him a PM I’m not sure if he still has them, but maybe you can try it
Other than that, the only thing that comes to my mind is MTN, but I’m not sure if they have those kind of drivers. It has been the quest of many people here…