I've really enjoyed reading the discussion that developed here.
For me, I was told in college by a sales person at a running shoe place that I needed to correct for over-pronation. They gave me a pair of Asics that supposedly corrected this problem. I loved those sneakers – they were very comfortable and I never had any problems wearing them, or using them for hiking, and I used them until the soles fell off.
I was told the same thing about over-pronation by a sales person at an outdoor store at about the same time when I bought my first pair of big-lug, GorTex-lined hiking boots, and they handed me a pair of green SuperFeet inserts to use with them. Those boots were also really comfortable, and they fit well. I never had foot fatigue in them, or blisters. And when I started researching the ultralight philosophy/method of backpacking years later, my boots were the last thing I gave up…
Once I did, I never went back.
I LOVE the Merrell Pace Gloves. I haven't had any of the problems in them that people warn about (foot fatigue, sole brusing, etc.). My feet DO get tired standing in them for REALLY long periods of time (hours) on hard surfaces like tile or concrete. But I haven't found shoes yet that that doesn't happen in. I think just standing around for hours on concrete isn't good for me.
So I guess I'm on the fence. Or will have to do some testing when the Bushidos arrive. I haven't used any pronation corrective inserts in years. Maybe I was too young at the time to really pay much attention to the differences between my shoes WITH support and the ones without?
My decision to buy the Bushidos was based on it being down to the Helios or the Bushidos. The Bushidos had good reviews, and supposedly offered moderate pronation support, whereas the Helios were neutral. Because of what I had been told in college, I thought I'd try them out and see what I thought.
I am also very likely to just stick with my Pace Gloves since I like them and they have worked well for me. I honestly think the agility is going to be irreplaceable, and that I will miss both that and how light they are if I use something else – I'll be kicking myself (figuratively). Though, I may have to at least start out with a new pair. My current pair are getting a bit long in the teeth, and I'm not sure they would last from now until Sept 1, plus another 100 miles…