bro, im not going to flame you becasue i was once there too..but do a little research on the subject. NO there is nothing you can do to stop your balls from shirnking. Here is the science. You are supplementing your body with Testosterone, in whatever form you are taking it...wether winny, deca, test...ect. SO your balls don't need to produce as much testosterone as usual, bc your are receicing it in artificial form. Therefore, when you are cycling, your balls shrink ..nothing you can do. The only good thing is that when you stop the cycle, your balls get back to normal .
But you have to use clomid or arimidex, or something to quickly help your nuts start producing test again. Once you do clomid therapy, your balls get back to normal. But if your a fool and don't use anything to jump start your test production after your cycle, then you may get into serious problems. When usuing deca, maybe you might want to add a little test to preven deca dick...(limp dick)..although some pros don't have a problem with that.....hope this helps
P.S. Anavar, used at low dossages, does not stop your balls from producing test..therefore it is one of the safest steroids...