Flying Crane
Sr. Grandmaster
Actually...I would kind of agree with this statement. If someone else went through and combined what they would consider the 'best' of each style they trained, then taught that to you, you have both a quicker way to crosstrain, and an oppurtunity to refine their combination of arts. The only real downside is that what they consider the best of each style they trained may not be what you would have considered the best of each style, and you don't really get a choice int he styles that were crosstrained.
I disagree. Often what makes someone good is having gone thru the complete training for each system. If he condenses his selection down to a "streamlined" system comprised of what he feels is the "best" from several systems, and only teaches that, he is robbing his students of the experience of the full training. When this happens, the guy who did the training and established the new system is often very good because he had the full training in each system, but every generation removed from him is worse and worse.