generally i'll use .5-1mg m-w-f with 3-4g of test/wk (about 6g total, 7g with orals), and that's plenty... but that's "offseason" (no 'event' to get ready for).
pre-contest is probably the only time I'd say to use adex every day... since at that time, your only goal is to hold onto what muscle you already have, not build more muscle. (for most ppl, anyways.. there's exceptions. i.e. guys who 'grow into the show').
you need a lil bit of estrogen to grow, an anti-aromatase will kill your estrogen... as well as your sex drive if you're not carefull.. ESPECIALLY with letro.
nolvadex will compete for receptors and but not eliminate test/estro aromatization.