Hi Alan.
I had some changes in life mate. No longer have the workshop space as I'm renting a room now. Haven't done any bodging since.
Last night I was thinking about the amp and had a look at some of the photos. If I can find a suitable space I want to get this finished up. Looking back I really liked the sound with the SKpre's running on TeddyRegs. Treble and mids were sublime. I want to go that way again but use the R/C to drop and load of voltage so the TR's aren't working too hard. On the bass issue might go for Tants on the SKpre's this time. Another thing I can try is positioning the volume pot between amp and pres instead of in front of pres.
Is the B4 the preamp of choice these days then? I see there's a bit of a HackerNap craze too! Well done Hacker mate
I'm starting to get the bug again!