Of course, you're totally right! I was just giving the note I had made from the papers I had read, with the dose for MY cats! I should have thought about it before sharing, sorry for the confusion!
And I agree 100%, if you're to give more, talk about it with your vet Betsy. Q10 is good, but its effect is strong. It shouldn't be stopped at once for example but tapered off slowly. I guess it would be good to also start it slowly, I mean start with a token and slowly up the dose to 5mg daily.
Some special spoons help measure either 1/8th or 1/16 of a teaspoon. I use the 1/8 to dose the supplements for my cats. Found them on amazon.fr, I guess that you'll have a much bigger choice on amazon.com.
I made a conversion table at one point with each one of the supplements, calculating the strength and the recommended daily dose in mg converted in this special spoon, and I got used to using it.