the best tamp is one that fits your baskets perfectly. There's a guy in Adelaide who makes tamps to fit - they have nice Jarrah handles, and a heavy s/s base, that he fits to your baskets ... you can either send your baskets to him, or measure them for him, and he makes them to fit. I thnk Reg Barber do this, but being a company based in the states, it would probably cost heaps in postage, and would take a long time... Greg (the guy in Adelaide) seems to think that flat is best, but from what I've read, it seems like an age-old debate that's never been fully resolved.