I like your analogy, LOL. Congrats on the good deal and new rig.

I do think the GSP can sound fantastic, but in general lacks some of the realism that the 11R brings to the table. It is much easier (in my opinion) to make the 11R sound like the GSP versus the other way around, since the GSP/RP series models don't respond too much to the "master volume" controls like the 11R.

Some of the GSP/RP models like the 5150 and RG100 are flat out fun to use though and very easy to dial in for high gain. Also, don't neglect the digitech models like "BlackBass" or "DigiSpank", because I think those are fantastic as well.