I think the best use of the Tune-Bot is tuning by ear to the best of your ability, then fine tuning the remaining 5-10% with the Tune-Bot. Using a Tune-Bot for the entire tuning process can be exhausting and self-defeating, especially when tuning to upper ranges like for snare side reso for example.... So there is room for the art (ears) and science (Tune-bot) of tuning!I think that a lot of players feel that way.
Tuning is a bit of an art and nobody wants to take the art out of it. Really, all it does it take the guesswork away. There's still plenty of room for self-expression in the amount of resonance you want, intervals between heads and individual drums etc.
And yes, finding that 13" was a good thing. You're probably going to need the ball clamp with the long hex rod for that drum but they're not hard to find. You could always put in on a snare stand for a one-up-one-down configuration along with the 16" floor tom