I think 203 is the ideal but you determine if they are ready not by temp alone... they must jiggle- meaning you need to probe the meat to make sure it is ready, either with tooth pick or fork. The jiggle indicades that they are truly ready.
As far as rapping, either way should produce a good product. I suggest to be dynamic and judge based on how the cook is going. If your cooking hot then you might want to rap to retain moisture and not to dry them out. Usually ribs are moist and dont need a rap.
It is a very easy item to cook (meaning hard to mess it up). Just don't take it off too early.
Send pics...
I used the PBC it ran a bit hot in the beginning, used BBB rub wrapped at around 175
Took it out at 205 baste it with bbq sauce and put it back uncovered for 15 min to reset the bark