I could have posted this message in several places/topics, but given this question mainly revolves around the characteristics of the SFT-90, this seems be logical place.
I saw someone mentioned the idea of putting the SFT-90 in a Convoy M21B. He did that with the 22mm/12A FET driver (which he got up to 16 amps), instead of the 20A buck driver, given the high(er) Vf of the SFT-90. That higher Vf is also mentioned by @koef3 in his review.
Now is the current bin that Simon offers a different bin (J9) than the J7 bin as tested by Koef, with a noticable improvement in Flux, according to the datasheet that Simon provides: https://convoylight.com/uploads/72553/cart/resources/20250309/e86f70dafa28d220592767d542ab1865.pdf
The KD sample tested by Koef hasnât listed which Vf bin it is (or I missed it), but the Simonâs bin is a VL bin (3.1-3.3V).
The goal of the M21B/SFT-90 build would be just stupid power/output, as much as possible. Efficiency etc. isnât important, because the M21B canât sustain it anyway.
What would be my best choice of getting the most out of the SFT-90 (with the high Vf): the 20A buckdriver or the FET driver with some mods (spring bypasses, thick as possible wires to LED), to push it at least to 15A (or more).
All of this doesnât need to make sense, I just want to make an as âstupid as possibleâ M21B with the SFT-90! 
