This has been in the back of my head for some time now so I figured I would put this out there. I've been around here for a few months now and I trust what most people say, at least the guys/woman that know what they are talking about. Here it goes.
Over the past 9 months, my buddy and I have been working out. He is roughly 6' -6'1" while I'm 5'6" maybe shorter. Basically, I'm a midget next to him and most other people, but when we both started working out we were roughly the same size - in proportion obviously. But I've noticed that over these past months our strength has shot up in almost equal levels. He has me on everything by a good 10 but that's not much in my opinion. Also, our weights have gone from 150's to 180's and I’ve gone from 130 to almost 160 but I've noticed a difference in mass. So here it goes.
I FEEL like a height difference tends to make a difference in the mass you pack on, I’m not referring to strength but the general appearance. Being shorter and putting on weight, you will look more filled out then someone who is taller putting in the same time and effort. In my opinion, I feel that this is because there is less surface area that needs to be ripped/broken and rebuilt. Before everyone shoots down this theory or argument here's an example.
Let’s compare two people. One who is 6"4 and the other who is 5’6”, and let’s say there is a height difference in the legs of a good 5-6 inches. The 6 inches in the legs is mainly muscle, bones, ect. Could be fat, but for this let's assume they're athletic. So, when weight lifting, those extra 6 inches of surface area needs to be ripped/broken down while the other person has 6 inches less. In turn, you both gain equal strength gains assuming both are eating correctly, getting enough sleep, but in time, because they person who is short has less area to work with his muscles will appear to be "larger" then that of someone of 6"4. Basically take someone who is 6'4 200 lbs and move their mass to someone who is 5'6, they would look ALOT larger than the person who's 6'4. Now I’m not sure if this argument or idea has any relation to anything but I’m curious if this makes sense. Or maybe this is all just common sense and I'm just stupid but I’m trying here