I’m not sure what he is doing there, maybe he’s using a small fet, an inductor and some resistors to replace the 7135’s. The inductor is small so it will have some resistance and maybe the inductance might smooth out some flicker at moon.
I’d like to ask him about it but he hasn’t logged on for a while.
I just wanted you to know about the programming key, it should make testing Narsil changes a lot easier for you. This is Harley’s thread about his programming key. [Oshpark] HQ ProgKey - Universal Driver Programming Key
Lexel has a key for his drivers but I don’t think he has shared any designs that use it on Oshpark.