Thank you David and Rgurney,
I read about your mods, and that's something I might do, if I finally decided to go with BAT.
One note on V-caps, though.
Some Supratek preamps owners changed Auricaps to V-caps,
and some of them decided to go back to Auricap, not liking what changes V-cap introduced to the sound of Supratek.
Actually Mick Maloney (Supratek owner) was offering upgrade to V-caps, but after listening to them for a while,decided that he didn't like the sound.
I know, this experience cannot be transplanted to BAT, but still, there is something to consider.
I guess, same goes for silver wires, some people like it, and some don't.