This is why something like arccos is so useful. Gives you real distances for each club while playing, and averages over the course of multiple rounds. Now, the casual golfer is neither going to buy arccos nor make a catalog of club distances from simulators. But those that truly want to get better or perform at a higher level, I think your advice is solid there.
Arccos is huge. My first few rounds 90% of my greens missed was due to coming up short. Some of that is due to mishits but still I wasn't taking enough club. 17th hole Saturday was a perfect example of new thought process. If I hit a SW perfect from 105 it would be pin high, instead I choked down slightly on a AW. I hit it a little chunky and it ended up on the front of the green.