Okay, so here's what's up with the pork tips..... They came out with very good flavor. Very much like pulled pork. But yea, lots of little flat bones, and a little grissle. So basically I decided not to sear it, and then spent about 15 minutes going through the whole bag and seperating the bones from good edible meat. Will probably be making great sandwiches with it for a few days.
Verdict; it tastes good, and it's cheap, but it's just too much of a PITA. So next time, if I want pulled pork, I'll just do a pork roast (not a tenderloin, but rather a pork shoulder or butt) for the same flavor, but way less work.