Lean mass is going to depend on your diet, brother.
Want to eat like shit but get ripped? 100mg tren/day for 6 weeks.
Want to take the alternative route, have a clean diet, stay healthier and have more cash in your pocket? Then yes, just run some test.
I've ran 1.5 grams of test E. I bumped it up to 2, but the estrogen was too much to handle, not even letro could manage it. I kept that dose for 8 weeks, and the gains were by far the best ive had. The best part was, I kept nearly all of it.
Apart from the expense of the AI, I believe I spent less than $200.