If I didn't pump iron and watch my diet CONSTANTLY I'd be a very large boy.... I know cause that's where I started and It's a huge mental feet to turn down the piece of pie or extra burger and deal with the hunger when your body naturally wants you to store all the extra energy it can in the form of fat. After all, us guys on the endo end of the spectrum are not only fighting our body to have excessive LBM but also fighting the long line of evolution that allows such "proficient" energy storage.
If you have to stuff your face just to gain a pound than your story began a little different. Every bit of muscle you made from the get go shows it's there in full effect. I'm not going to say it's easier for any one body type, it's truely a battle for anyone doing things right, but it takes a very STRONG person to try to maintain or even gain LBM while just investing in long term result without any real immediate gratification.
ManBeast, you have obvious dedication and I think you have had wonderful results.