Hi Guys and Welcome OaksClocks!
I thought I would jump in here real quick with my vote before having to race out of here this morning.
Between the two my choice would be MicroSet any day. Back when I made the clock course in 1997-98 I was using a TimeTrax which works well but once I got my hands on a MicroSet the choice was an easy one. Bryan Mumford offers incredible support and is a brilliant inventor and keeps adding features to the unit. Just my two cents here but hope it’s helpful.
I’ll be back home in a couple of days and might be able to add some more to this when I finally get some breathing room.
’till then adios for now and Happy Holidays!