I'm pretty sure all of us have watched at least once some of the FuzzyYellowBalls videos floating around on youtube and such. I was wondering if any of you ever went the extra mile and paid for some of the premium content provided by them, or other sites like TennisEssential and such? I've seen some interesting offer lately from FYB with videos that talk about strategy and such... I'm not too sure how much one can really learn from such videos? For those that bought and watched the videos, care to do a mini-review? Did it really help your game? Was it worth what you paid for? I'm curious to know.