Infraction: 6. Do not post unless you have something new and worthwhile to say.
Message to User:
This post is part "thanks" (which should be sent in a PM) and part complete misunderstanding of the patch notes. Removing this because it doesn't add anything of value.
First of all, this thread is my 'go to' for theory and practical application, and I thank you for the cogent and comprehensive information. Having said that, I'd like to note that as of 4.1 happiness is no longer a pet attribute. With that change, the Mend Pet glyph has transmogrified to Glyph of Lesser Proportion which merely makes your pet smaller. This seemingly insignificant alteration has a bit of a ripple effect, requiring the carrying of pet appropriate food once again, rather than spamming an occasional 'mend pet'.
I've substituted Glyph of Aspect of the Pack for the transmogrified Mend Pet=Lesser Proportions. It has been quite handy in the new heroics.