I'm not attacking your opinion, it's irrelevant. From what I noticed is how Bruce Lee's footwork and punching has changed. Before he drew from the manuals you could see from the training footage that he through WIng Chun punches, his footwork was also unorganised before his boxing influence. I read an account from Lewis who was one of his students saying how he spent hours at a time practicing footwork and incorporating the boxing punches. Balance was an interest as with all his attributes but it wasn't a single obssesion more like a culmination of elements. Fencing has a lot of positives, to discount them is simply being closed minded. Each style is constricted by it's own form, such as many people are through their own bias and opinions.

Personally I'd rather be an "al la carta" fighter, the bigger the menu, the more I can use.