Re: Tone pros TOM's: yay or nay???
I'm pretty moderate on this one. I've had the "metric" TOM on three guitars, with three different miniature stories to go with them:
1.) Epiphone Wildkat. Had a licensed Bigsby on it that would go out of tune pretty easily. I went through it and used all the applicable Dan Erlewine tips I could find, and it helped. Nice improvement, but it was still a pain to keep re-tuning all the time. I noticed that the factory bridge would rock slightly back and forth when I used the vibrato. Bought a Tone Pros bridge, and it stabilized the tuning to the point where it was no longer an issue. I can't say I noticed a difference in tone; I was pretty focused in the tuning issues, and I could never get it to sound like I wanted anyway.
2.) Epiphone LP Custom. Had the same factory bridge as the Wildkat. Had a stop-tail and a replacement nut made by a really good luthier, so no tuning problems. I was curious about what the Tone Pros might do for the tone, plus I really didn't want the bridge falling off when I removed the strings. I thought the sound with the Tone Pros bridge was a little tighter, better defined in the bass, with a clearer midrange that had more body and presence.
3.) Jackson SL2HT. This one, I did it just to do it. It was the bridge from the old Wildkat, actually, that I ended up putting on there. The Jackson had come with an actual Gotoh bridge that was, apart from the locking studs, identical to the Tone Pros bridge (as far as I can tell). In fact, the Tone Pros bridge even says "Gotoh" on the underside. I really didn't notice a difference here, other than the bridge staying in place with no strings (kind of a must on this guitar, for me), and I wasn't spending any more time wondering if I'd hear a difference.