First off...how much is "1 tab" of those things? Tabs come in different strengths. Second, there's no reason for the lower dose of deca for the first 2 weeks. And primo for 4 weeks at that low of a dose is useless IMO, and if you were going to do it...push it back about 3-4 weeks so you can use it while the deca clears the system.
Seems like you may need to do more research.