I've tried it, and attempted to copy the leads and bass wich did well, only my problem was that you kept switching that black square under the close button in the piano roll, I did managed to copy them no problem though, but it could be an problem for the newbies. You could better tell them to put the square to the most far up side or down (depends were you were ofcourse.)
The other problem is your detuned arp, you said it was an default FL studio arp only detuned, well I couldn't find it... :P So I used Z3ta+ for it (also an problem for the beginners.)
And at the last part of the tutorial, I tottaly lost it, (Vub1_BASS_EfEm_C2) I had that one already from the VEC samples, but at that part in the tutorial, I didn't understand it anymore. (mayby because I am from Holland... I don't know) Because when I did the same like you, the music totally did sound horrible. those were too long basses it just F***ed it all up for me.
The good sides of it:
-You've made an downloadable sample pack!!! I've never seen anyone doing that!
Big plus for that! ;D It's great for the beginners who don't have VEC samples.
-The tutorial itself was most self-explanatory, but you've also putted information in on how and to do it.
-You've added sound fragments on how it should hear, really great for those who did misunderstand anything.
-Nice overall looking tutorial, everything was to be seen, not just down-sized images, no it was all full screen. ( wich actually was realy easy to follow everything, I just needed to zoom-in sometimes though. :))
Well it may sound that there are more down-sizes, but that's not true!
It's an well divined tutorial, wich is really great to use for beginners!
I just couldn't think about more up, but there were certainly many more.
Hope you understand my review, and doesn't gets to much pissed of by it. :P
Good luck on further progress, and ofcourse with your music also, I love it! ;)