LOL...I KNOW what you mean about getting tired of the shakes! I quit the HH program after 6 months the first time I did it because I just couldn't choke another one down!!! I was still passing some mucoid plaque at that point...but it had greatly diminished and I was feeling great! And in case anyone is wondering...yes, I know that Gray says to stop the cleanse after 5 months the first time you do it. I've never been the best at following rules...hehe! ; )
I think you should follow your instincts and resume the HH whenever you feel ready...you'll know when the time it right! But you can certainly start again in two months...no problem!
I have not used any of Dr. Schulze products...no idea how you would respond if you only took Formula 2. Since he includes laxatives in part of his program I would be a bit concerned that Formula 2 might stop you up pretty good! But I just don't know.