Trainers » Rocky Helmet | Abilities » Smooth Coat
If Cinccino with the "Smooth Coat" ability also has "Rocky Helmet" attached to it, can I choose to activate Rocky Helmet first, and then flip for Smooth Coat?
You would need to know whether Cinccino takes damage or not in order for Rocky Helmet to work, so in this scenario you would have to flip for Smooth Coat first.
Source: TPCi Rules Team (2012-03-15)
Abilities » Smooth Coat
Is Cinccino's "Smooth Coat" Ability checked to prevent damage done by your own Pokemon's attacks?
Yes, it is.
Source: Next Destinies FAQ (2012-02-09), TPCi Rules Team (2012-02-09)