As far as the wobble goes that could be your atomizer or the connection itself is worn I wouldn't no unless I checked it out first hand . If you have a atomizer - carto that isn't making contact you can unscrew the atty a half a turn and push the center pin up from the bottom of the mod and snug your atty down. Keep in mind this can be the atomizer or carto and not the mod .I see lots of cartos with center pins that are recessed . It would be nice if all the atomizer manufactures used the same specs but they don't unfortunately and I no there not testing them like they should.I've got one that may also need a little of your magic, Rob. The center post (or sumthin) was loose from day one allowing an atty to wobble. No worries. Everything worked fine so I just ignored it. Now the wobble is getting much more pronounced and atty's go cold. Fiddling with the atty will get it firing again. Suggestions please?
Every 510 connection is set in my lath with a digital micrometer to make sure the depth is correct