The BOA system for the walk mode broke on my boots after limited use. When they were working I absolutely loved them. I have ThirtyTwo TM2 boots for inbounds, and so these Jones MTBs were a natural fit to go BC. The walk mode works great, making for a comfortable ascent, until the BOA breaks and leaves your boot sloshy.
It's been slow getting a resolution from ThirtyTwo on these. I'm on my third week trying to get a resolution from them. I've gotten the run-around trying to get these fixed. There doesn't seem to be any sense of urgency at ThirtyTwo to get me back up and running with fixed or new boots.
I've also been reading a lot of similar stories about the walk-mode BOA breaking on these boots.
Before buying these ask yourself if you want something that apparently wasn't designed well, wasn't tested thoroughly, and isn't supported very well when it does break.
Note that BOA was extremely responsive when I contacted them, and did send me parts to attempt to upgrade these to a spectra, but the kit doesn't fit the way these boots are built.