It's a great cycle. Clean. Take the Deca at 100mg/4days, or 200mg once a week. That should be good enough as long as you're also stacking the winny and primo. Also, it's small enough that you won't have to worry about needing nolvadex. You shouldn't go less than 8 weeks on this one.
I've seen awesome results from friends on this. Don't w*ss out on your training, or your diet, and you'll be pleased.