I went the other day to try out the ap1 712 and ap2 712.  I only hit the 6 iron and hit the ap1 712 more consistently than the ap2 712.  My pro suggested that I should do a combo set of the ap1/ap2.  
He is going to have me hit the 8 iron in both and suggested that maybe I should go with the ap1 712 3 -7 irons and the ap2 712 8-P irons.  What does anyone think?