Cool. Think I read on t'web somewhere that the whole Holy Sons thang was his reaction to a particularly long and bad bout of depression. He basically took a LOT of acid, and challenged himself to come up with a track a day as therapy. Said he essentially 'wrote' his way out of the blues. Think the article also mentioned almost a 1000 tracks recorded to 4 track, so there could be plenty more where these releases came from. As far as I recall, he takes what he considers the best of thwm, and polishes them up and overdubs guitars/ keyboards/ drums etc till he's happy. Been a great hit rate so far as far as I'm concerned. I love Grails, but prefer the Holy Sons output as it seems more human, if that makes sense.

Also, as to Circle, Hissi is a mighty fine record. There's a few threads about good releases archived somewhere on HH. I don't have every release, but my 2p worth would be, in no particular order...

Prospekt, for insanely good metal repetiton
Alotus, for Mogwai-esqu ambient atmospheric guitar noodlings
Forest/ Miljard/Guillotine, for the out there strug out alt/kraut-folk side
Meronia, their debut for a bit of Loop style action
Zopalki, a little like Hissi (ditto Andexlt)
Taantumus, for a more post rock sound (ditto Fraten)
Raunio, sweet live album from Prospekt/Taantumus period
Telescope - great live album
Six Day Run, Six tracks in 6 days. Pretty good on the whole.

Stuff that's a bit Hmmm (50/50 good/bad)

Pori - Post rock jazz ensemble
Katapult, odd bit of cool repetition plus bad metal
Golem/Versillerto - More odd folk, emphasis on odd

Stuff I ain't so fond of...

Hollywood, bad heavy rock
Sunrise, bad metal
Panic, as above
Tulikoira, ditto
Leviatan - Falcon (ex Circle) almost hair metal