So, I've finally found room in my limited budget to splurge on a pair of Vibrams. I'm having trouble deciding which style to purchase, though. As the title suggests, it's a toss-up between the KSOs and the Sprints. The primary use of these shoes will be indoor lifting/sprinting/training during the not-so-temperate Minnesota winters as well as outdoor hiking and general wear during the other seasons.
What I'm looking for are some opinions from fellow Groks/Grokettes who have experience with both and can make some recommendations.
Some specific questions:
Do the KSOs tend to get really warm/uncomfortable in hot weather, or at least more-so than the sprints?
How much protection do the KSOs provide as far as preventing sand/dirt/pebbles from getting into the shoe? Would I have a problem with those things if I went with the sprints and did some off-trail exploring?
Thanks in advance!