A new toy, just in time for Christmas :)

[Damion]

Fantastic (vintage) hardware there. As you've found, Thor's library works perfect here (Ralph Babel wrote one too, if you want to try it). You'll also want to check out MuFastZero if you haven't already.

Although the Z2 bus is rather slow, you'll get the full 3.5 MB/s writing to a Picasso IV, which is really an excellent combo with this accelerator.

I wish I could help with the SCSI issue. I used to burn CDs with mine using 2 PlexWriters, and don't recall experiencing the diskchange problem. There was a Guru ROM intended for the TekMagic, sadly it was never released.

I know this card has a "reputation", but I always found it to be really fast and stable. (On that note, just don't overclock it!) I had a Blizzard 2060 too--sold it, and kept the TekMagic.

[Damion]

Wasn't the FPU crippled by missing patcher for missing FPU instructions (AKA Cyberpatcher in P5 060 cards) or does Thor's library fix it? Otherwise Oxypatcher would be recommended.
I remember once when trying Quake it was really crawling - I had disabled the patcher by accident.

Always used Thor's library here and haven't encountered those issues, along with MuRedox on rare occasion (usually old demos and whatnot--the program allows you view what (if anything) has been patched, a nice feature). The original library being broken might explain why Ralph wrote another one, but that's only speculation. (I just know the library the card shipped with wasn't Ralph's, but I can't recall the author.)

I don't have Zorro II, but is it smoother when running in EHB mode?

With a graphics card, Z2 won't hinder Doom or Quake at the low resolutions those games are playable at, fortunately.