Well... including my work ones I've got 3 coffeelab tampers, a reg barber radical pro, a bumper professional classic, and a protamp proffessional, all with a flat base for updosing, and all have been scaled down to 58.15m to custom-fit my machine!
And they're not just for looks either, as having a range and variety of tampers means that my staff can choose the instrument that suits them best, and by varying the equipment used, this reduces the likelihood of RSI occurring, which can ony be a good thing.
What are you using?
P