Originally Posted by DamoSyzygy
In fact, Im fairly certain they do, or at the very least, Mike does on some of their stuff.
This is a shot I took behind Mikes kit. You can just make out a pad under his chimes to the left - Which, if memory serves me correctly, acts as a tap-tempo device for his in-ears.
Your memory does not serve you correctly. That pad triggers a cowbell sound that is only fed to the band members' in-ear monitors, and he uses it to count in songs without the audience hearing it. It does not set the tempo for a click track (with all the odd-time stuff they do, he really couldn't use anything with a simple tap-tempo function anyway, they'd have to use pre-programmed sequences).