Hi, first you dont have to split your deca injections. Dont stick yourself more than you have to. Next, unless your prone to gyno and since your dosing is on the low side, I dont see a need for the 4 weeks of nolvadex. You will need a way to boost natural test production or you will feel a bit lethargic.
Its all preference, but normally if folks did a cycle of test and deca they will switch up their next cycle by using EQ (or other compounds) i/o the deca. The belief is, switching back and forth between compounds will somewhat help your receptors from becoming saturated.