I’m getting a new roof and have four estimates. Each is a little different from the other as I would expect. My dilemma lies in that each is pushing a different primary shingle. As I ask questions of each they all agree that one is better than the other and have cases to prove their individual point. I read on here of the TAMKO problem so I am inclined to stay away from them but of the other three majors (GAF, Certainteed, and ELK) I am at a loss as to which is better. I am interesed in the architectural style shingles. Thanks for your help!!