Thanks for this guide!

I guess I've got two questions for people using this model

How do you handle cc?
I mention this because in most cases you would want to re-apply cc and having to re-target and reapply the cc could be quite tedious using this method. Nowadays with cc used so little in instances it's not a big issue, but it's a valid thought for groups containing mages or other forms of cc that they would want to reapply.

How would a pet class use this model?
When I leveled up I initially planned on running 4x warlocks and a priest (I actually got them all to 70 this way and did almost every instance along the way with pets tanking). Each warlock pet would tank a different mob. How would you work around this?

I'm thinking maybe these are the limiting factors to using this method.