Experience with FREDs in a tube amp PS

Transparency and dynamics are what I'm hoping for. I've got a pair of Cary SLM-100s that I'm thinking of tweaking slightly. The B+ right after the rectifier is 488V, and I was thinking of going with an IXYS 1200V bridge to handle turn on surge. I'd love to go with the Schottkys, but- yeah, SALTY! I can get the 600V/6.6A Schottky for about $65.00 ea, which isn't bad. I'm wondering if it would handle the surge though.

Those Crees do really look interesting. A bridge of four TO-247's (1.2kV/10A) would take up a bit of space though. The 5A package(TO-220) is only slightly smaller, and I'd really like to have heatsinks on them. This is obviouly going to have to wait until after the holidays($$). I'll be doing the three bridges(600V) in my Hafler TransNova 9505 (woofer amp) too. That's twenty SiC Schottky diodes, and eight of those need to be 25A. HMMM- I wonder if the kids have bought my presents yet?

OH(BTW)- No soft-start. I can tell by what my lights do when I turn the amps on.

I've got Aeon polypropylene coupling caps in my mains now which will do for the time being. I'm focusing mainly on power supply upgrades for the woofer and main amps right now. Overall system dynamics and speed are what I'm after.