Ableton Midi Clock ? (DD-20 midi sync)

[Diz <dizzy@spacenet.ru>]

Good day !

I would like to know - is Ableton Live! midi clock stable (in general)
?

I've build a small device to midi sync BOSS DD-20, but experience
some glitches then slaving it to Ableton. BPM display is jittering
around - say, 120, 119, 121, 120 etc. Way too much - so I'm
going to blame Ableton clock.

WBR, Diz