looks like a great product. it is the logical progression that removes the first step of shell selection thst still required a touch of human expertise. For better or worse, this means the shop can offload the bulk of bootfitting to basically a junior technician without the requirement of years and years of master bootfitting exp. REI seasonal employees could now deliver equivilantly great fitting boots for 95% of the public.
Question though, for someone willing to shell out to get the boots, why would any customer opt to on do only the zone fit, if full fit was avail? even if it was $50 less, i dont think anyone would do the zonefit if the only benefit is a small discount.
Full fit is a more complex procedure with more screw up points, but it still is a step by step procedure, not requiring decades of masterbootfitter experience to make decisions or choices. Given the price for entry, i would think everyone would opt for full custom option.
The only customer technical benefit to zonefit is perhaps the issue with cracking that was brought up. may be the cracking is not as bad using zone fit that only heats problem spots and not the whole shell.
i do know that other thermomoldable things like footbeds (sole brand) are more supportive if you wear-mold them and don't do the heatcycle