Nik wrote:Interesting.....I use the Synesso ridge-less triple and double baskets and a 58+ size Torr european curve tamper and it fits perfectly. Their 58+ size is 58.6mm. Doesn't scrape the sides and does a much better job at pushing the grinds from the inside edge of the basket. It nutates and polishes perfectly. The slight curved seal on the edges is effective as well.
I have 58mm Espro and Speedster tampers that I seldom use.
I have a few Synesso baskets and have to say, I'm not in love with them. I seem to have better extractions on my equipment with LM baskets.
I guess I have to order a 57!!