We got our Duck and Pear!!
I gave him one kibble to see if he would like it and he ate it up!! Then he looked at me for more!
I mixed a little with his Ranchland and the little stinker ate all the Duck/Pear out and left the Ranchland!!
Sooo I will just switch him cold turkey- which I have done before. Luckly I only have like 2 cups of the Ranchland left!
Also I am in LOVE with this food, those pics do not do it justice, it is SO much smaller than the Ranchland!
I dont even have to cut it!!!! 
Which is awesome for me! LOL
Hopefully he does well on it, I am not "too" worried with the oats but we will see
