I've got a TV Hot Rod harness for a future 5422T upgrade. Not installed yet. I can say that the TV Classics in my Phoenix (Hot Rod Wiring) do seem a little louder than my other Gretsches with a tone switch wiring. That said, you're getting "all pickup" tone with a HR circuit. A lot less wiring for the pups signal to go through, and less pots. Any tone EQ will be at the amp. Proper pup height/pole settings are VERY critical with this circuit. Time adjusting is well worth it. My Phoenix went from meh to WOW once I adjusted the TV's like I've previously posted. Such an even string balance, and pup to pup balance. Guess I'm a HR circuit fan. Just basic plug in and play. Simple sweet tone.