Ron, thanks for your patience with trying to explain this to us!
"Weedwacker, your mix is fine, but will be slightly more concentrated than 1:4. It sounds like another good way to quickly make a sugar solution for a feeder."
You're right about my "quick method" coming out a little more concentrated; normally I would make it by bringing 2 cups of water to a boil and then adding 1/2 cup of sugar. At any rate, I don't think the slight difference is harmful -- my northern hummers probably can use the extra energy!