i think tramadol is a wonder drug even though i hate it now. hahha. but yeah anyways iu used to be in love with it till it turned on me. honestly i got better and more hardcore hihs off it then i ever did from most conventional opies (oxycodone, codeine, low doses of oral morhine) though it was never as euphoric as hydro or heroin or morpine.
anyways to my point, i would not shoot them becasue i think yes you would get a rush, but it would be a rush from just tramadol which without its M1 metabolite, is nothing more than an sri. youll get good antidepressant effects and speedy effects offf of it (if your a person who feels teh tramadol high)
but i dont even think youll get the Mu1 so you wouldnt have that great opiate effect or rush, so if you like opiates there is no point in shooting it. there are ampules of it for injection oddly enough. either way i wouldnt do just cause i think it would be lacking alot in the HIGH department
peace