Jeff-
If your grate and meat temps are accurate, you're not doing anything wrong. You've got a couple of 7-pounders there which will take in the neighborhood of 10.5-17 hours to cook. If you didn't check your therms before the cook, definitely do it before your next one.
Pork butts are forgiving, so you could bump the temps up to 260 or so to move it along. Also, if you have any doubt about your therms, check the meat by feel. If it jiggles and wants to fall apart, or the bone can be twisted, it's ready. Otherwise, sit back, ice another six-pack and ride it out. The end result is worth the wait!!
Oh, and I didn't read your log too closely, so don't know if this is your first attempt at PP? If so, you may not have experience first-hand the "plateau" (you might have read about it.) This usually occurs in the mid-160s or so (meat temp) and can last for hours. The temp will stall here while the collagen and fats break down inside the meat. Once that process is complete, your temps will begin climbing again, and you should reach 198-200 in a couple hours or so.
HTH,
Rich (wishin he had some PP to look forward to for dinner.)