I have both original pedals, LS & SL and degooped them both.
The SL is literally build on the LS pcb.
Differences are:
LS:
a100 vol, a10k tone, a500k gain pots, 5 1n914 diodes and a opa2134 ic
SL:
a 250k vol, a10k tone, a1meg gain, 5 1n914 plus 2 extra Bat41's diodes in the loop and a tl072...