5/5 AF3+2 is really only for the epeen shot numbers.
But admittedly, what puts a smile on your face more, 20 more QD damage or that occasional 3k QD shot. Life is all about the little smiles and laughs along the way. I'd never diss a COR that went 5/5 AF3+2. If they and their party get a hoot from epeen QD shots, more power to them.