I started with an Iberital-branded convex tamper, chromed with a varnished wood handle. It's a bad fit, and very hard to use. The lump on top is very uncomfortable, and it rattles around inside a basket with masses of room to spare. It does duty in the neck of my major, stopping my single-dose beans from flying about when I grind, and I also flip it upside down if I need to tamp a single - it's almost exactly the same size as the middle of my single basket.
http://www.happydonkey.co.uk/iber...x-58mm-tamper.htmlI then got a RB C-flat with a ball handle. I have quite long hands, so I found that uncomfortable as well - all the pressure was applied through my finger tips, and the ball didn't reach the palm of my hand no matter what I tried.
I -then- switched to a RB flat with an aluminium tall handle. Very comfy, sits in my hand very nicely, and the flat base seems to give me the best results.
Hopefully, that should be it for my. Although some of those Thors -do- look rather fetching...