If it felt right, and (more importantly) tasted right, then it was done, Laura! In the future, just stick the meat probe "center mass" in the thickest part between the point and flat. Trying to monitor the temp on each will drive you crazy, and there's no need for it. What are gonna do, pull the flat out if it gets done first? lol. See my point?
I, like Kari, have never had a packer get done in less than 1 lb/hour, so your smoker may be running hotter than you think. Might want to calibrate the probes.