Song I have trained for 2 years. My lifts are pathetic but my progress IMO has been fantastic considering what I looked like before. I have done a lot of reading in those two years, so I'll take what you said as a compliment? :P
I did the big compounds and only noticed ANY growth when I started doing isolation. Higher reps helped a lot. Now you could say this is a personal experience thing but than again doing those curls will not have made my biceps grow any slower.