Originally Posted by
FatButWeak
You should stick with the basic 5 lift program until you have exhausted your linear progression. Become as strong as you can and it will help you in your long slow distance sports. I understand that completing your linear progression on the big five will, for a short period, make training your long slow distance sports difficult, but you are training two different energy systems (aerobic and anaerobic) and two differnt muscular systems (fast v slow twitch). This is an oversimplification, but not untrue.
Unless you are a college athlete or some class of professional runner/biker, you should take 6 months off from training your LSD work and focus on strength and strength recovery. Others on this board have done it and when they returned to their LSD sports, noted very little drop off (if any) in their longer distances and an increase in the shorter distance times. Becoming stronger is worth it.
Make sure you read all of Starting Strength, the book, not just some wiki. Also, you should purchase Practical Programming. These books are very, very well written references.