I'm not sure there is really a single answer to that questions... There are so many factors that play a huge role like genetics, diet, intensity of training etc...
I wish I had a better answer but honestly I don't. I can tell you what you more than likely already know.. it's not easy, and unlike so many other things that do get easier as you get more time in...weight training isn't one of them.. and I'm speaking strictly from a gaining lean muscle point of view.
The body doesn't want to be overloaded with muscle.. it naturally wants to accumulate fat so it's really a constant battle with your own body. A new trainee might easily be able to add 7 or so lbs of muscle with a 12 week training time, assuming their diet is in place, decent genetics and of course a good training routine as where someone with more experience at an intermediate level might take a year to add an additional 6-7lbs of lean muscle mass.. But again, this is just a generic statement because so many factors fall into play like mentioned before.. IMO it's primarily genetics..
At times it can be very frustrating for someone who has trained for several years when they see the gains start slowing down and that's the primary reason so many natural trainers jump the boat and start taking pro hormones or steroids. It allows them to several important factors.. Train harder.. recover faster...... The only real problem I see with that is.. Once you make that step over to anabolic.. start seeing good steady results.. it's very very hard to let it go.....
Again, I realize I haven't even came close to answering your question but to be honest.. Like I mentioned before, I don't think there is a single answer....
Your questions was....
For progress as a natural lifter with nothing a long the pro-hormone sides, is progress supposed to be long and slow? like months to years to see drastic changes?
Yes.. very much.. Once you reach an advanced intermediate level it can take a year to add 10lbs to a lift and longer than that to add a 1/4 inch of mass to your arm.... and it's very very frustrating for some.. and usually turns into one of two things.. Getting frustrated and quiting or taking pro hormones and then moving on to steroids..
<message edited by smoundzou on Saturday, April 05, 2008 5:42 AM>