If you're getting sufficient level now, I don't see any benefit to adding a SUT. If anything, the added gain may result in distortion.
Will VPI's Classic 3 sound much better with a SUT?
I'm considering adding a SUT to my vinyl rig, which already sounds detailed and neutral which I prefer. I may add Bob Device's VPI specific SUT ($1,750). It would replace the existing RCA junction box on the arm board, so no added cable needed.
Please have you the same/similar SUT experience with your same/similar turntable? What was the sonic result(s)? Thank you!
PS My vinyl rig in more detail: Ortofon Cadenza Black MC, VPI Reference wired 12" 3D tone arm, Tara Labs RCA cables to Fosgate "Signature" tube phone pre-amp, Tara Labs RCA cables to Unison Research "Unico" integrated amp, Nordost "Frey 2" speaker cables to Definitive Technology "BP2000" floor standing speakers.