I finally got to use the Tune Bot today.
My kit is a Mapex Saturn V, and today I set about tuning the toms: 10, 12 and 16, with the Mapex-supplied Remo heads. Having looked at
this tuning guide I decided that perfect fourths intervals of C-G-D would work for me.
The 10 and 12 toms were very close to these tunings already, and gratifyingly for my ego, all lugs were within a poofteenth of each other.
The 16 proved more challenging, particularly the reso head, until I figured out that with the drum resting upside down their were lots of weird overtones. By tilting the drum so that there was minimal contact between hoop and floor, I got better readings.
I've gone for same tuning top and bottom, in the interest of max sustain. The smaller toms haven't changed very much (although I may revisit that once I've played them as part of the kit), but the 16 FT now sounds like a timpano..timpanus...
kettle drum.
Next I'll move onto the snare...and in the medium term I'll play around with different tunings. So far, what I do like is the ability to quickly get (back) to known points, as others have said.