Im guilty of using the 4 dollar stuff myself, its a good thing I dont pay for it. Ive been using Devcon II on all ears for 3 reasons. It has a 30 minute kick time, it gives me plenty of time to adjust hair patterns and groom. I do have to taxi the skin a certain way depending on weather im doing an ear forward or back. It has no smell at all like the 5 minute stuff at the hardware store.The last reason is because for a commercial head with the ear liner painted pink, I don't have to paint the ear skin unless the ear has issues. I clean the ear inside and out with lacquer thinner to get rid of the yellow look from the tanning oils. The northern deer I typically work with have lots of ear hair, when groomed you dont see much skin anyway. This is a short hair southern deer mounted this way, no paint on that ear at all. Oh, and I dont card them either.