What kind of sets are you using? I've been using the Silhouette sets, almost as long as I've pumped and I hardly *ever* [knocks on wood...] have problems with them, pull them or anything like that. I often see people, yourself included, but way more than that, reporting bad sets all frequently and that is not my experience at all. I've only done it a few times, less than 5 for sure, more like 2-3, in going on 5 years of pumping.
I like the Silhouettes as I can stick them in manually and sort of nudge them to make sure there in deeply and securely. Occasionally, a site will "brush up" against what I figure is scar tissue or something like that during insertion and I can wiggle it away from that or put it over a bit but I like the manual much more than the Quicksets. I think that I use the 13 mm ones to get them in as deeply as possible. I always liked the 12.7 mm (1/2") needles for shotss and want more needle w/ sets too. I dunno if doctors/ medical suppliers always recommend that but I wonder if that may help me too?
Great job on the A1C, BTW! I'm glad that your efforts have been rewarded! I was sort of in that ballpark, w/ 110 LDL in the summer of 2011. I added 4 servings of veggies in, pretty much all the time, including broccoli and spinach. Some of the veggies replace pretzels/ popcorn and other crap in my diet but my LDL went down 3 months later to 86 and last time was 74, less than my HDL. My docs don't talk about food that much but making a small effort to adjust my diet and be more rigorous about that has helped me improve those numbers w/ no meds, T2 cholesterol mess or whatever? The downside is that I'm becoming acutely aware that the spinach and broccoli around in the winter are not *nearly* as fresh/ tasty as what we get in the summer, it doesn't last as long in the fridge and I hope I don't get food poisoning.