If your not training to failure, you could certainly get away with training 3x per week, as right now it sounds like your still developing skill / intra-muscular coordination. That being said, as you grow progressively stronger, you will need longer recovery periods, if you don't, you'll see your numbers grind to a halt. But If you properly regulate your intensity, volume and frequency accordingly , you could in fact reach your full genetic potential in as little as one to two years.
"Strength is finite, it doesn't take long to reach the upper limits of your abilities" This was told to me by a former british powerlifting champ, here he is at bodyweight of 74kgs Deadlifting over 600lbs http://www.youtube.com/watch?v=d8DQIFUyB0Q
That was 20 years ago, he now focuses on bodybuilding (trains in his very well equipped garden shed), thought recently he's started power training again. He keeps a training log on the Dr Darden HIT forum, heres the link...http://www.drdarden.com/readTopic.do?id ... =61#bottom
I've spoken with him on many occasion on another HIT forum, extremely knowledgeable, experienced, and helpful individual, learned a lot from him.