I've switched over totally to the Saucony Kinvaras. Love them - especially the colour (hot pink). Had tried the Vibram but don't use them as much; mostly because they are a little tricky to get on and I get too impatient. Funny, after wearing the Kinvaras for about a year, the 'old' Saucony shoes seem so heavy and clunky.
Interesting thing - the old shoes were for stability, heel protection, etc., yet in the last year I haven't had the heel bruising or plantars fasciitis that seemed to be always lurking before.
Serendipity
"So far, this is the oldest I've ever been....."