Watching them do it is the nutz, with no exception. I read those instructions over and over, and even talked to the the expert himself at Tiger on the phone for an hour (I think his name was Ivan or something like that...the older guy). Still didn't get it quite right. Once I saw it done right, it was easy.
As far as Valley Forge, if you plan on doing more than 5 of the wraps, then the cost of going to the Expo is worth the wrap lesson alone, not to mention all the other stuff you will get to see.