VFFs question page

[PearlTigress]

I just got my first pair of VFF (Sprint). The salesperson measured me as a 41 but there was a lot of room in the heel and my toes felt like they were flopping around in there, so I went with a 40. They are very comfortable for the most part, and I did a 1.5 mile hike (around Devil's Tower! Cool break-in). The only problem is that on the left one, it is tight around the back of my ankle, like the elastic is too snug. I'm wondering if there's a way to gently stretch it, or if they "break in" like some shoes if I just wear them enough, or what I should do? I'd hate to end up with a big blister or something and be off of them for a period of time. Has anyone else had experience getting VFFs to fit perfectly?

[Metric]

I got a pair of Kimodo LS in a 42, now they are slightly too big since they have stretched. I still wear them, but I find that I need to adjust my feet as I walk for long distances. I got a pair of Sprint in a 41. They are more snug but I am confident that they will stretch like my other pair did.