Im not a big fan of mixing 19-Nors. They are very suppressive and can be rough to recover from. Plus, the side effects on libido, while on cycle, can be a problem. Also, prolactin based gyno is more of a possibility. I would pick 1x 19 Nor and then switch the other compound out. So if you are looking to make mass gains, maybe keep the deca in and add in some EQ. Or do Tren and EQ. That would work well too.