Why is everyone always trying to chase the perfect cycle, perfect diet, perfect routine, perfect PCT? There is NOT ONE, in addition everyone's body is going to react different to each of the above.
If there was ONE perfect PCT that allowed you to keep all your LBM and lifting gains, when coming off we would all be 500+ pds with <5% BF, and benching 1000+pds. When you come off you are going to lose some of the LBM gained as well as a decrease in strength it is unavoidable.
The best things you can do when you come off is decrease you training(not intensity but volume), and increase calories. Calories I do not think need to be all that clean, assuming you come off, in the off season. Bulk in the off season, off cycle, when your 250+ in takes a lot of extra calories to put on LBM, but doing so without extra calories and increasing BF is nearly impossible when of your natty. Many pros put on an extra 10-15% in bf in hopes of gaining an extra 3-5 pds of LBM. Than 20-24 wks out begin the cycle regimine and start to lean out. Of course I think slin an HGH would aid in the retention when coming off, I have never used HGH, I am to poor.