well, actually jack uses the vk and wk from that series...and yes,
they are absolutely fantastic...i think they are more important
than the stage coupling caps...these are what i used for my wa-6:
2 of 220uF/200v wk
2 of 150uF/350v vk
4 of 470uF/16v n-series
2 of .1uF/600v v-cap teflon
and i used mills and riken resistors:Angela Instruments: Tantalum Film, Riken Ohm Carbon Fi
everything went smooth except for the pair of ground forks that
refused to accept solder...took a sand paper and some cleaning
to make them submit...i used silver strand 7/30awg wire for
internal rewiring (probably overkill)...
be careful not to fry any components when desoldering...it's
very tight in there...i stayed at 300 degree F or 150 celcius
for the solder and it worked fine with cardas silver solder (had
to raise slightly for the ground fork challenge)...don't forget to
have plastic straps on hand to tie down the power/filter caps.
silicon rubber is good to hold them in place too. good luck.