Tdial, so you are saying that a Ben Silver 10.5D on the 330 last equaled an English size 9E on the 337 last? Plal thinks that a 10E C&J handgradev is equivalent to a US 10.5. I tried the 10E in the 337 and it was too large (my Mortimers from Ben Silver fit me perfectly at size 10.5). I would have figured I need to go to a 9.5E, but maybe I need to go all the way to a 9? Montecristo
Montecristo, I would say the 337 last is a full size smaller (UK vs. US). That is, a size 9UK on the 337 last fits like a size 10US. The 330 last, which I ordered from Pediwear also in size 9UK, fit more like a 9.5US. So when I ordered from Ben Silver, I ordered a 10.5US and it fit just fine. So I would say the 330 last in UK sizes is only half a size smaller in US sizes. I know this is very scientific data.