No, not if you're doing it for money. Abrasion blasting or core mining just slows you down.
There are sparser areas in the rings and denser areas in the rings. If you've spent that much time mining and haven't noticed that, well... I don't know what to tell you.
So I've made some mining trips recently... what must I do when I'm in a poor hotspot? Eg 1 LTD on 5-10 rocks.... log out and in? Fly out and come back? Look for another LTD hotspot?
The so called overlapping hotspots I don't see: some are close to each other...but not really overlapping (Borann it is ,yes) ...
So far I've had 2 instances with 7/10 LTD's in rocks....that makes the difference for efficient mining...
Any tips and thoughts?