As arnold mentioned adding deca will definately add to retention, however you could add winstrol and will not retain anymore water from that, in fact winstrol actually has anti-progestagenic properties and will aid in water reduction while increasing strength and size slightly (Also an excellent way to protect against progestagenically induced gynecomastia). Taking an aromatase inhibitor for the duration of the cycle will also aid in this, however it will cut down on your gains. Generally the point in taking a cycle (unless the sole reason is to cut more) is to gain mass beyond what you plan to gain for the long term. You can then shed off that extra water weight after your cycle is done. By having that extra water weight it will allow you to lift more and get past plateaus. I would suggest taking 500mg of Test as you mentioned and 50mg ED of Winstrol, if you feel the need to take Femara (letrozole) or Arimidex (anastrozole) for the entire cycle take them at .25mg ED or even EOD if your concern is just to keep water low. I also agree that you should save your HCG for PCT, it really isn't going to help you while you are injecting 500mg/week of Test E and some research indicates taking it while your body is allready in a testosterone rich enviornment can be counter productive when it comes to use it for PCT. You could, however, use it to front load your Test E for the first 2 weeks. By that I mean take both the Test E and HCG for 10 Days as the HCG will increase test levels at the start before the Test E ester has had a chance to metabolize. Test E has a half life of 10.5 days so in 10 Days your body will have about an average weekly metabolized amount of about 215mg woth of the ester or 170mg of actual testosterone which is above normal male levels so that is all the longer it would be worth taking it. If you chose to do the front loading method I would use the HCG @ 2000IU 2x E5D. Good luck with your cycle, let me know if any of that was confusing.