I also like the flattened / widened edge up and down. I would rather a screwdriver as one of the newer magnetic / tripplelock or how hot it all. Simply screw it and is good. This is of course a matter of taste.
To secure the Tube but now I have gained me a carbine with rotation and would also recommend to anyone, because the carbine had turned to me but the one time or another. This can lead to transverse loads, which should be avoided, of course.
But I will continue to use around my chalk bag on the belt to fix it and when I'm in the rock and not in the hall, I'll be able to use it safely whenever I need to build a stand or similar
From the handling and processing him I can you in good conscience recommend it.
For backing up the Tube I recommend, however, definitely a carbine with rotation. Are there any course of Edelrid or Black Diamond, which is again a matter of taste.
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