This depends on the person and their response. Some people swear by Test intake at just TRT levels with primo and var. It comes down to how you feel.
For myself, I really like how test and mast makes me feel, it's just dynamite, I'll toss in some stenbolone ace, that's my alternative to primo along with some vars. I personally feel at my best at that point. It's not aggressive, just sitting above supratherapeutic levels. Yet, not overwhelming. Test/mast, Test Primo is the way to go IMO and add or subtract other compounds as the work horses here and there, maybe some vars or Tbol occasionally, maybe some CJC of HGH. Get bloods, easy to maintain and your chances of feeling like garbage is slimmer.