>I'm 50 and don't want to be so intense at body building but
>want to build muscle and have a changing routine so it does
>not get old. Cycle #3 seems way to intense for me.
Maybe it won't be by the time you get to it (after MC 1 and 2). Also, mesocycle 3 isn't really body building (that takes shorter rests and higher reps, like MC 2), but for building strength. And isn't it a good idea to be as strong as you can be? It makes everything so much easier: lugging around luggage when traveling, dealing with shopping bags, doing house- and yardwork.
I'm 51, and I want to be able to be independant long into my old age. For that, strength is important.
You're already getting MC 3, right? Why not hang on to it and see if you want to try it out once you've finished MC2?