What's up guys - I'm going to use a Test only cycle for my next cycle, first cycle was a TBol only one, which I probably shouldn't have done, but received solid gains off it. About the test, would 400mg/week be sufficient? Or should I go with the more common 500mg/week

With either one I was planning on injecting half on Monday and the other half on Thursday. I also planned on running letro for 15 days before first injection. And I couldn't decide whether to run nolva during cycle or arimidex during cycle.

Let me know any suggestions. By the way, I'm 24, 5 10, 190, been lifting for 10 years, body fat relatively low, unsure what it is exactly though.