I agree with your assessment about the Utopias and the GL2, catscratch. I'm really enjoying the pairing and I think I'll park here for a while in terms of gear.
I ended up buying the Astrodyne a while ago to tide me over until the HeadAmp LPS arrived, and while the Astrodyne is an improvement over the stock switcher, the LPS is much better than the Astrodyne. The Astrodyne smoothed out the edges a bit and improved the bass response, but it sounded kind of compressed and distant, which the LPS completely solves.