Document vactrol-type guidance for opto-sat R10 (matches existing R18 note)

[NeoRecasata]

The schematic has a helpful comment next to the wet/dry mix vactrol (U6) documenting the LED current-limit resistor (R18) value for different vactrol types:

"VTL5C3 R18 = 47k. Silonex 325R3 R18 = 470R. Handmade Vactrol with 5mm led and LDR R18 = 47k"

There's no equivalent comment for R10 (the opto-sat vactrol U3's LED current limit). Builders using a different vactrol than the design assumed will have no guidance.

The current R10 = 330 Ω value doesn't match any of the documented vactrol types — likely the root of the amplitude issue (see #2).

Action

• Add a schematic comment near R10 with vactrol-type recommendations
• If Fix opto-sat amplitude attenuation: R10 too low + U2B gain too high #2 is resolved by making R10 a trim pot, update the comment to describe the trim's purpose
• Optionally add the same info to the BOM