I recently noticed that the allen head bolt over the lateral ankle on my Dynafit TLT-700's was quite loose. This bolt is part of the ankle flexion system. It seems so loose that I'm concerned it might fall out, which I imagine would be a big problem in the backcountry. I've checked other Dynafit boots and find all sorts of variability in the degree to which this bolt is tightened - some loose, some tightened down. Anyone know what the proper adjustment should be - tight (will this limit ankle movement?), loose enough to allow full ankle flexion (but can it fall out?), or other?