If you're so damn convinced that it's possible then why are you bothering to get our approval? I'm telling you if it were this easy to gain that much muscle then bodybuilders would turn pro in 2 years after lifting their first dumbell. These are the guys with the insane genetics that allow them to reach places the average trainee will never go and it still takes them years and years to reach the level that they are now.
Hell on average a person reports gaining aobut 25-30 lbs per cycle, then if post cycle therapy is followed should retain at least 15 lbs. If you would hit 5-6 well planned cycles throughout the year would accomplish that.
1. People do not consistently gain that much muscle during each cycle. They usually gain less muscle each cycle that they do. If they didn't they'd gain 300 pounds in a year or 2.
2. A well planned cycle takes a good 12 weeks or more. Most test cycles run a good 8 weeks and then you need time off to recover which IS part of the cycle. Since many use longer lasting esters then the test is really in your system for a couple of weeks after your last shot which means most cycles are around 10 weeks, plus you need a good 6-8 weeks off at least if you're doing it right. So then we're looking at 2-3 good cycles per year maximum.
3. Even if one was to not cycle and just stay on all year long then 75 lbs of true muscle gain is still out of reach for 99% of us. Only the genetic mutants would be able to reach this. I doubt even Ronnie or Jay could report this kind of monster gain in their early years.
You can gain muslce with less then 3500 calories per day, some dieters, the ones who know how to train and what/when to eat have gained lean mass.
Muscle does not grow from thin air, it requires calories plain and simple. Proper macronutrient manipulation and timing will cause the weight gained to be in the favor of lean mass, but it still will not create muscle when there isn't enough building blocks to begin with. I can promise you that NO ectomorph can gain that kind of muscle on 3500 calories a day, and that's not even considering you want 2500 on off days.
Endomorphs require far less calories to build muscle, but still to put on that much muscle in that amount of time would require massive caloric intake which would still cause fat gain regardless how you plan out your diet. I have no doubt that most of us can pack on quality mass without getting fat, but 75lbs a year is far in the excess of reasonability.
Just think about what you're proposing hard enough and maybe logic will eventually set in. 75 pounds of muscle cannot be built on a maintenance caloric intake. I'm 215 and those calorie intakes that you propose wouldn't cause weight gain on me and my metabolism isn't fast by any means. To gain 75-100 pounds of ANYTHING in 1 year would mean 1.5-2 pounds of weight gain a week NOT counting water weight. That means a good 7000 calorie surplus weekly. Even if I managed to choke down that many calories week in and week out I doubt I'd end up at that kind of total weight gain. The more muscle I built the more calories I'd have to eat to promote weight gain. The general consensus is each pound of muscle requires 40 calories to sustain, so even 10 pounds of muscle requires approx 400 extra calories. Now imagine 75-100 pounds of muscle and the calories required to keep it. Really sit and think about this last sentence. If you honestly think you can haul around that kind of muscle on your meager calorie intake you are extremely naive. Not only does that kind of muscle require massive amounts of calories to sustain, but it requires even more to build.
I could sit and make points all day but I doubt it will do any good. You've made up your mind that this is possible and you are looking for those that will agree with you. If you are still sure about your theory then put it to work. Take truthful before and after pictures in a year of training and come back and tell us how it went. Tell me if you can consistently gain 2 pounds of muscle each and every week. This is amidst any sicknesses, family emergencies, etc... that may occur. If you slip up for one week and gain no weight, or worse lose weight, then you either have to make it up that extra weight gain later on. Which means more than 2 pounds a week.
At any rate I hope none of the younger readers are going into the gym with this kind of dream as they will be walking down the path to failure. Thinking outside the box is great, but there comes a time when you have to be a realist and realize that certain things cannot happen.