I think its just a matter of choosing the dose that puts you at the high end of the normal range or even a little above. Some experimentation is needed to see where you feel the best, but a lot of guys like to be around 1200.
I have two friends that get prescribed 300mgs of cyp per week because it literally takes them this much to get to the high end of the normal range. It puts them both about 1200 and they're docs are totally cool with this. I use 200mg/wk of cyp, my lowest point of the week is about 750-800 my peak is about 1100-1250. I generally feel fucking great here. I haven't tried going any lower though, so on my next cruise I might experiment with dropping down to 100-150/wk because I see some guys say they actually feel a bit better there.
This is still a very healthy range, these are not technically "supraphysiological" levels, however while on trt/cruising it's not necessary. These levels will mimic that of your teenage years, or close. If you want to maintain good health and see good performance I recommend trying to dial yourself in using bloodwork.
I also take a single 25mg Aromasin tablet on the day I take my injection and it points my E2 in the high end of the normal range. I feel the best here. Any lower and libido is effected.
It also wouldn't hurt to have your igf1 checked and see where you're at. On 3.5ius I can get igf1 close to 500ng/dl.
So basically 200mgs of test cyp, 25mg of Aromasin, and 3-4ius of HGH and I feel fucking amazing. 10 times better than I ever feel on any cycle. I would get bloodwork and take a look at total test, free test, e2, prolactin, progesterone, igf1, dht, t4/t3 and do your best to balance everything.