Spoke to SprintCare about a service issue i was having but it was probably just a quick hiccup. I also asked them some questions that can help fix the issue with "Boise has LTE, now leave us alone" and they replied with this great info. Sorry about the time differences, ive been really busy but ive been really eager to post this.
Hope this helps. Im very anxious myself seeing as how im in those areas quite a bit.