I'm looking to pick up one of these guitars to use along with my Historic SG (my favorite guitar ever). I was thinking of getting another SG but decided I'd like a little change but not something totally on the opposite end of the spectrum. I'll have one of them in a Open E for some stuff and one in Standard and use both guitars in each tuning and for slide however I feel like doing it that night.* Option one is a 2007 Gibson R4. It's pretty checked which I like, has upgraded plastics, and Wolfetone pickups. I have a Les Paul Standard that I don't play anymore since I've never been a huge Les Paul guy, but the P90s and wrap tail could add some cool tones to my arsenal, especially for the Dead stuff. They also could be noisy though, which I don't like. I do admit that having a classic design and Gibson on the headstock is a plus for me. Option two is a Prototype PBG Gustavsson Bluesmaster Special. This is a sweet relic Goldtop (all gold actually). It will have better upper fret access for all the slide playing I do and be a little more comfortable with a forearm and back contour, and about a pound less weight. It's all Mahogany with Throbak humbuckers too so it will have a little added thickness and be more similar to my SG. The LP would leave me with about $800. The Gustavsson would cost me all I have saved which I don't mind. I'm really torn between the two.