Well....went out to shoot my new P-07 on a warm and very humid day. Sun was about 2 hours from setting and guess what? Clean Shot was smoking like a Civil War Cannon. Just terrible! So giving it the benefit of the doubt because I know under certain circumstances of humidity and sun position any powder will seem to smoke, I went back insude and got some 135's I had loaded with N320. Little to no smoke in comparison. Just ordered some of the new Alliant Sport Pistol, we shall see.