My vet, the vet at the vet school she consulted with, and my friend in Michigan, also a vet told me to hold the dose for at least 5 days; then do a curve. Of course, I listened initially during the re-boot... but have had some difficulty since trying to go from 2u to 1.5... kind of a roller coaster since then.
Stick w/ 5 days. That'll let his body get used to it. And if it's not seeming to do much, you can go up or down after that. Keep in mind that at this low of a dose, every .1 is a BAM! When we were at 4.5u going to 5.0u... not so much!
My coworker today put a really nice pic of the Roman Colosseum (sp) in our presentation... only to remind everyone that "Rome wasn't built in a day!" Patience, daniel-son!
Here's one of my top five pics I've ever shot... the interior of the coffered dome of the Pantheon in Rome, illuminated by sunlight from the oculus.