I totally understand where you're coming from. I'm not really a chatterbox on forums so the fact that I really only gain if I dig makes it take ages and this past year has not been kind so I've not had time like I used to. I used to supplement by selling and FC here and there but money hasn't been too good lately either.
On the good side though I've had a little more time lately and have been doing pretty good at digging and leveling so I feel like I'm earning again.
You know, I have no idea. I had wanted 4 in a specific order (two to revert to level 1 and two to leave on the last stage) and in looking yesterday realized I only had three and not in the order I needed them to be in, sadly I had to release one. (please don't be mad

) So I need to replace that one and get the missing one. At least they will be in the correct order this time. I really wish we had a way to custom sort, so I wouldn't have needed to do that. It makes me feel awful, even that one time I released one that I truly didn't want any longer