So I'm looking into getting into highpower service rifle shooting this year and it appears that most serious shooters use a shooting coat. What are the benefits of using a coat? Is it just for the recoil reduction or no-slip surface on the shoulder? Or is it that you can tighten it up during off hand for more support? Sorry if these questions are rather simple but I'm just trying to figure this all out. Also, other than Creedmoor, what other manufacturers have you worn and like or dislike? Any brands to stay away from? Thanks in advance!