at 150mg/week you are injecting roughly 100mg of testosterone. That's nothing for a cycle, that's HRT dose...
Up the test dose to 350mg-450mg/wk, and leave it at that. Primo at 300mg and test 150mg is just not a well dosed cycle... Will do little more for you than busting your ass naturally. BTW 300mg primo is a pretty small dose too. 500mg is more like it.
If you want to do just primo, 500-600mg/week. Just test 350-450mg per week. Lowest I'd go on the stack is 450-500mg primo, 350mg test.