A love story told in pictures:
#meater thermometer from @apptionlabs inserted in chop,
chop inserted in bag, bag dropped into #mellow water bath and were off to the races:
Pork chop was part of this #sunbasket meal
Conclusion: They pretty much agree both during chilling and cooking phase.
Now if only #mellow would implement interface for #meater, and #meater would implement sous vide mode. It obviously is confused by the low ambient temperature.
But all in all a useful combination