I agree entirely. I discovered them around "Tightly Unwound", too, and they've been one of my favourite bands ever since. I went to a lot of early gigs and did quite a bit of photography for them, which is how I got to know Bruce. (The surround stuff came much later!)
I've been re-listening to their back catalogue a lot recently, too, and it's no exaggeration to say that Bruce is a musical genius. Many of his creative ideas and song writing, even in the very early albums are truly superb. I think the fact that Gavin is very happy to play/record with them stands testament to that.
Bruce is also insanely creative; all that "bonus" material he's produced over the years, like "Eight Days" and Eight Days Later" during the "Variations" and "Ten/Twelve Stories" sessions. And not a bad song on them! ...in fact The Snail Song on Eight Days Later is one of my favourite songs of his!
It's a travesty that they didn't get much bigger, much earlier. Even now they should be bigger than they are, but at least they have a good sized fan base these days.