The 348 is quite long. As I was in London earlier this week I had the chance to be fitted at the C&J store on Jermyn Street. On the 348 I ended up sizing down quite a bit in order to keep the forward toe space minimal (which will reduce creasing). I am somewhere between US 8D-8-1/2 in general. Ended up in the UK 6.5. I usually end up in a UK 7. The width changes very little when sizing down 1/2 size and it's always worth a try with long lasted shoes. I compared overall length of the C&J on the 348 to a pair of G & Gs on the TG73 and as it turns out the CJ in size 6.5 is exactly the same length as the GG in size 7.5. If you can't find somewhere to try them on locally call one of the CJ stores on Jermyn Street, they will ship you the two most likely sizes for you to try on, you just keep the size that works and send the other one back. Yes, you will have to pay for the extra shipping but once you've done this once they will keep your sizing information on file and the next time you order from them will make recommendations for sizing based on the last.