If you would like to guarantee there will be no erectile dysfunction probs, then 2:1 ratio is the way to go. Personally I have run deca on its own with no problems. It's not recommended, as most will not get away with it.
yeah thats what I read from gh15 posts too, I think im probably going to run something like 250mg/1amp of sust eod with 400mg deca ew + biggest dose of dbol I can tolerate from week 4 to 10, with adex and hcg
a buddy of mine did a tren/deca/winstrol cycle once, I thought he was fucking crazy because of all the shit I have read and told him that hes not gonna be able to fuck for sure! he didnt cared, did his cycle, and didnt had any dick problems for the whole time... however, another guy I know did the same cycle.. his girlfriend ended up crying, thinking it was her fault