For me, EVERYTHING MK has ever released has been well recorded - possible exceptions could be the Twisting EP and Badges, Posters which sound a bit grubby.
And two of your "strange" songs on KTGC (Fizzy and Behind With The Rent) are two of the better songs on that record IMO!
To my ears, KTGC sounds a bit rushed.
I think that Guy had a perspective in mind that, if were few instruments, very expensive microphones e no compression, the listener could have the best experience. Almost like the band was in their room. (Very different from the quadriphonics, of course)
KTGC is a very artistic album and, sonically (engineering) is a conception that how Tracker could be. In other words, is a naked album.
In my opinion, KTGC have thin drums and a much trebbly athmosphere in general. The acoustics, in general, are a bit blurried, but it is what it is.
When Tracker was released, i ask Guy something similar as : - You guys ever think on re-record KTGC with the actual studio setup/equipment. The sonically achievement on Tracker was huge and KTGC was recorded very rushed (GF words).
And GF responded something like: - We are thinking about it. The possibilities that we have now could elevates the KTGC recording. A very artistic album that could be better with the knowledge that we have now.