Unlike a dry tan - which after oiling, goes into a drying room to 'dry', allowing the oil to penetrate the skin as it dries - wet tanning does not sit as long ... otherwise it would become a dry tan. I can only surmise this does not allow the oil to fully penetrate, and therein lies the problem. And in my 45 or so years in Taxidermy, turning the ears to within ⅛ of an inch of their very edge has been the industry standard, and it still is. Blown out ears? C'mon! You REPAIR THEM! There is a very good article in this issue of Breakthrough Magazine on making ear repairs. I usually always sew ear damage closed. But then again, I use 000 Silk Suture and fine surgical needles. And I don't mind sewing, so ... One way to avoid ears blowing out is to secure a plastic zip-tie to the base of the ear skin after turning. Don't pull them completely closed tight or the skin will not tan properly, and cut off the loose end so it cannot be pulled any tighter. This will keep the majority of the sawdust from entering the ears, which in turn blows the ears open. Of course this can only be done with a fresh cape/lifesize skin ... those shipped to the Tannery from Africa, have no choice. I have NEVER had ears blown open during any wet tan process. I have no idea where that is coming from. Dry tanning blows ears open during the tumbling proccess when sawdust fills the ears to bursting ... thus the use of those plastic zip-ties! The Wildlife Gallery tumbles with corn cob to avoid this very issue.