I've heard about how 5 and 10% OC spray is supposed to be great, but how about 2%? I was at a Gander Mountain and they had Eliminator brand spray in a large cannister for $6.99 which sounds like a great deal. I looked on the internet to see what was said about it, but could only find 5 and 10% OC of that brand. Has anyone else bought this stuff and (ouch!) TRIED it?