thanks a lot for the advice scott and prowler, kind of thinking that as i'm a bit of pussy when it comes to being cold i should go for a 5mm sock! was at 03 yesterday in portland and tried on a pair of gara 2000 and their new professional fin that's taken over from the 2000 and found them both to be pretty tight ,as in narrow, - something i was told to expect with garas. i didn't think i had particularly wide feet but apparently i do! so going to see how i get on with tribs fins and also have a try out of the stuff i've seen at blue water sports in brixham.