I'm just curious as to what size kydex you guys are having, or have heard of, issues with? I've been using .125" for a while now on all my clips and haven't had any failures reported back to me yet....
temperatures can also be a major factor in breakage issues with kydex.... or any other plastic for that matter.... if you get it too hot it will still mold and hold the shape, but the plastic itself will become much more brittle once it stiffens back up....