It's been years since I toyed with the first Shreddage, I'm not very familiar with it anymore. I'll probably need to re-download the patch sometime and see what's up. Right now I'm working on doing a tutorial series for the Shreddage 2 guitars. I'm sure you'd be able to apply some of the concepts to the first one though.I hear that about most EW/QL products. Not being a guitar player it seems fine for my demos, isn't worth the composer cloud subscription though.
So, I am trying to figure out my Shreddage 1. The demos on IS's website sound great, I just can't find a video or any documents to help.
Re: the other rabbit hole, What do you think about the IK Multimedia MESA BOOGIE triple rec amp sim? I want that sound, the re-valver sounds pretty bad.
I have no opinions on the boogie sim as I haven't used it as much as I use the other stuff in Amplitube 3. I don't recommend spending a single cent on any tonecrafting plugins until you have messed with a lot of the free stuff because a lot of the freeware stuff is very high quality. I will include tone in the video series I'm working on but I will be covering enough to get you started. So you can go experimenting on your own.