AmeriGraze 600 RR alfalfa variety

Alfagraze 600 RR, not AmeriGraze...sorry.

 

Is (or has) anyone growing the alfalfa variety Alfagraze 600 RR? If so, what have been, or are your experiences using it as a grazing tolerant variety and possibly taking at least one cutting for hay each season? This is the variety developed by Dr. Joe Bouton for growth across southern states. Seed is contract produced and sold by America's Alfalfa.

AmeriGraze 600 RR alfalfa variety