I just got my esterigon today, and I love it. The only thing I don't like is the bottom ring to lock the battery. I wish it had cut outs or/ knurled so you can grip it better, other then that it's awesome . Awaiting tilemahos[emoji4]
Had the same problem. Try swapping in the smaller o-ring. It should have been included with your Esterigon. Turns easier than with the standard o-ring.
Sent from my iPhone using Tapatalk

