Rene,
Goodluck with your smoke. I do Picnics all the time. Inject a lot of them also.
I rinse them off really well, and then on the non skin side, I push down/squeeze on them in the sink and you will see some blood coming out of the vein on that side. It may be anal to do it, but I don't like the color you sometimes get on the inside from to much blood remaining in there.
When I skin, I start at the one corner and slice enought to grab onto, then pull on that corner like I was trying to lift the Picnic up. Make light slicing motions where the skin/membrane meats the meat, and the weight of the Picnic will pull away from the skin, and you will have an easy time of it. I hope I explained that so you understand it lol, I do!
I have done a lot of 11-12 pound Picnics, and I plan on a 20 hour smoke for them. I have never had a large one like that hit the mark in 1.5 hours per pound. (230 pit target temp)
I did 2 8.5 pounders on Wed., put them on at 0700, puleed one at 10:30 that night, the other one took another hour. I pull between 190-195, and rest for at leaast 2 hours, but prefer 4. Have held for 5 hours before with no problems.
Doing 4-5 more for a Sunday picnic and trying Lump this time. (Thanks Bryan!)