I was wondering if this will be a good mass building stack and also if the gains will stick around when I'm off.

1st week - 500 mg Sust
2nd week - 500 mg sust
3rd week - 750 mg sust
4th week - 500 mg sust with 100mg Prima depot
5th week - 250 mg sust with 100 mg Prima depot
6th week - 100 mg prima depot
7th week - 100 mg prima depot