I hear ya'. 5 grams is too much gear for almost anyone...and I truly believe that. Most of the guys using 3-4 grams don't need anywhere near that dose to make new gains, let alone maintain.
I will hopefully hit 260 lbs this cycle with well under 1 gram...about 350-650 mg/week, to be exact (350-500 mg of test/week and 100-140 mg of SD/week). The dosage varies because I often skip injections and doses of orals. For example, this last week I only injected 250 mg of test (I meant to do 500 mg but skipped an injection) and took about 100 mg of SD. That is only about 350 mg/week. Yet, I am currently sitting at 250 pounds at 6 feet tall and 14% BF (I used to be 6'1 but shrunk when I broke my back and got a spinal infection).
The only factor that will determine if I hit 260 lbs in the next 3 weeks is food intake...not drugs. I can easily hit 260 lbs with 250 mg test and 100 mg of SD and truth be told, I could very likely hit 275-280 lbs with that dose, but it is ALL food dependent. Food is the real key to growth...and also the most challenging part of the whole process (and, genetic aside, the #1 reason most guys fail at achieving their bodybuilding goals). Note: I am also using 25 mg of MK-677 and 12-14 IU of Novolin R 2-3X per week.
Most guys use WAY more gear than they actually need to make muscle gains. They just don't give the body enough credit. The body actually has an amazing capacity for growth with low doses. The problem is that most guys never dial-in their nutrition and training to the point of personal perfection...or anywhere close to it, so they are forced to use a ton of drugs in order to make up for the slack in those two departments. Most of the time they don't even realize this. They have been brainwashed into thinking that they just can't grow on doses like that, so they don't even consider the possibility that they might be able to grow on less...potentially much less.
...and lest you think that I take my diet and training super seriously, I most certainly do NOT. I constantly miss workouts, eat no more than 2-3 X per day (including shakes), my diet is comprised of mostly junk, and I eat an average of 1/2 grams of protein per pound of bodyweight. However, I make SURE to take in all the calories I need every day. If that is sufficient to make me grow to 260+ pounds on minimal gear, imagine what you guys could do if your diet and training program was really in order!