I may have to do that (I assume you are talking about set screws correct?), I ruined my first set of coils because I tightened the screws too much and they cut the kanthol, so the second attempt I did hand tight then less than a quarter turn, but they still seemed a little loose to me, even when I snug them back down it seems like they work their way loose again.
Yeah they look like a screw without a head and you use an allen key to tighten and loosen them. Once they're tight they dont back off
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1.1yellow belly
1.0 desert enchi
1.0 pastel
1.0 het russo
1.0 lemon pastel
0.1 spider
2.0 normal