I just finished a run of deca 400 and test e 400 every 5 days for about 12 weeks or so. Made great gains, did not use an AI. My left nipple was sore on occasion, thats about it. I also used a little bit of anadrol here and there. At your low doses, it'd be good to have it around, but you may not need it. I felt great in the gym, with the extra "puffiness." Weights were getting lighter.