Suspension is the worst option with test, unless you are a pro athlete who can get tested any day. It requires a lot of well scheduled injections, and these are very painful, as they are water based, not oil based. Better use the enanthate version, as it will allow you to do just two injections per week, and you will have more stable testosterone levels in the blood. If you are having ED problems, it is an absolute imperative for you to run a good PCT after the cycle, which should consist of clomid, nolvadex, some natty test booster, and Ostarine MK-2866. Also, adding some Proviron at 50 mgs per day into the PCT would be a very good idea.