Any claim is a good claim. Most tinys will pay you back for the bomb/probe you just used. The past couple of days I have been mining amped with my (L) finders so I cannot comment on sizes since then but before that I was finding a decent amount of deposits of all sizes. I think what is funny is finding average is not that common and its the average sized deposit lol
. Most of what I find unamped falls into the very poor, poor, to small range with a few tinys here and there and a few moderates here and there and once in a while something larger. A lot of it depends on the the field and resources in that field.