My 60cm steel Soma Fog Cutter rando build wobbles if ridden no-hands, somewhere around 15 mph. I don't usually ride no-hands but sometimes zipping a jacket or peeling a banana happens. A knee on the TT takes care of it. Different tires maybe changes the speed, but it seems a permanent feature of the bike.
I love how the FC looks and rides aside from the wobble.
This compelled me to buy a new rando bike, so it's not entirely a bad thing
