This is a great set and you got a great price! A word (or two) about modifications. If you are looking to modify, IMHO the modifiers in Peak 10 don't really modify much. There isn't one person who does the modifying all the time, so I think they are just designated to do it and aren't really practiced at it. I also think that sometimes the "modifier" forgets she is supposed to modify.
If I need to bring it down a notch I figure it out on my own and it's easy to do so. I don't modify a lot, so it isn't an issue for me but it might be for some.
Enjoy your new workouts!!