Building a new home in southwest Michigan and looking at vinyl windows. I've located both a Polar Seal and Sunrise distributor and am working on quotes. I can't find the testing specs for Polar Seal on the NFRC website, but they do have "independent" testing numbers on their website. From my novice perspective, both companies seem to have a good warranty, but I was wondering if anyone has any advice on making a selection between these two brands.