I have an M5E1 with SD-E trigger and dwilson bcg just waiting for a good 6.5 creedmoor barrel. I am not looking to go too heavy and would prefer to stay at 18-20" I was initially looking at BA 18" and 20" but I don't really care for the bull profile of them. Any suggestions for a 18-20" would be appreciated. I am currently leaning toward the Criterion barrels sold at Brownells due to their profile and reputation. Any help and suggestions would be appreciated.