Hang in there...it looks like its going great. You'd probably get a heavier bark if you were using a more substantial rub. SPOG is great, but won't make a bark like rubs with sugars and other spices. Just do a search of the forums for rubs, and you'll find recipes for all purpose rubs that work great on pork. Or you might think about buying Jeff's rub and sauce recipes. Also, you can add to the bark by mopping/spritzing about once an hour. I like to spritz with apple juice mixed with a littly honey or karo syrup. Keep at it...its looking great so far!