There is a cap shoot-out on audiocircle ,too,
but I don't know how to link.
On the (audio central) section of (audio/video), under (my capacitor comparisons:mundorf)etc.
Also look up in the v-cap website for their reviews and there is a good Chinese shoot-out.
Check with Simon on his thoughts with your amp topography
and Bybee plus / minus the v-caps and his custom cap in the Mk2.
Go for the best sound for you. Simon knows better then I regarding the nuances of the upgrades (as always UMMV)
I am too soon to give a sound review on my amp yet, as a life situation has postponed some plans.
Not to worry, still to come!
Rod