jreed,
Not many people do know how good the wood is in the root ball since 99% of the time it's not something anyone gets with just standard felling.
Then most of the remaining 1% don't even think of the dirty root balls as firewood or as something they want to chain into to return maybe 5-10 % of what was above.
Good timing for the root balls you dragged into the forest, after a couple years they will be very dry and all but ready for the woodstove.
Should be nice and clean in most of them also, parts touching the ground might be suspect for being punky but I bet 90+% of the rest is the toughest nicest firewood you ever got.
Head to the forest with a couple extra chains though, even the cleanest root balls are tough on chain sharpness.
Your sure to hit a pocket of hidden dirt now and then but a few extra chains will make that just a 2 minute pain to change chains.
Bet you will be surprised at how heavy the wood is even 2 year dry in the root ball compared to similar stacked same species wood.