When I was at Ft Sill I saw a few Seabees there wearing ACU's with an 8 point cover in ACU camo. NMCB-3 and 17, maybe thirty guys altogether. I was with NMCB-17 Det 1 at Ft. Carson when I was a reservist...even though I was an AM. It was odd to see DON personnel in ACU's considering they still had the SCU's. I wonder if it was one of those Operation Uniform tests to check the feasibility of the uniform for their purposes. I wouldn't use them given the choice. ACU's don't "breathe" very well compared to the ripstop summer weight uniforms. Plus prior-service personnel going through Warrior Transition Course wore the beret, so it's hot and humid, we wore a hot-as-hell uniform, AND a wool cover. I actually sweat less during PT than I did marching to the chow hall.