I have a set of these getting delivered tomorrow. I can't wait to get them. I think the reason the buckles are 2 each way is that it is protection against not having some obstruction or accident rip them all open facing the same direction. The "replaceable insert" is removed with heat, peeled away and a new one is glued in place. Actually, the entire heel of the boot can be removed the same way and replaced so long as you don't wear it down into the boot itself. I think to have the whole heel done you have to send it in. Or you can send them to MX Boot repair and they will do it for like $200.
That makes sense on the buckles. I'm getting ready to really test these boots on the NORCAL BDR. I guess the biggest concern will be wearing them all day, multiple days, in the heat. I suppose it would be the same concern with any boot.
