It absolutely works, been doing that for years now and haven't had a tick since. I use that 1 oz in a 1 gallon sprayer and it's strong enough. It goes a long ways and saves a lot of money in the long run.
Yep, I've been saying this for years on the forums. The 36.8% concentrate is available on Amazon and 1 oz per gallon is close to the .05% final solution. Toss in a cheap 1 gallon pump sprayer and you can spray your entire hunting wardrobe in just a few minutes. $22 for 32 gallons of spray seems pretty economical to me.
Great video! I think I may order some and make my own for next season. At $12/can Sawyers is expensive.