My 610 is bubbling on the back - and I have the velcro fabric strap which covers the back specifically!!
Also being sent a new HRM strap as mine is now useless, even after a new battery etc...
I take that back - I don't use the insoles in my Asics Gel Cumulus 13's or my Adidas I use for the gym as the insoles are too bulky...
Why? My podiatrist has seen them in several sets of shoes and said if they won't fit with the insole take them out but most do.
I use the insole in all my shoes with the orthotic.
My Innov-8 Roclite 318's work just fine with mine. Done two very muddy trail races and climbed Ben Lomond in mine so far
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