I'm going to guess he'll prefer the v200 with the HD800 (based on my experience with the Soloist and T1 - which wasn't warm enough for my tastes, but some people like that paring.)
the most satisfying moments are those when you find components that matched let each other express in a unique way where each of the components feel enhanced, and any thought about existing limitations is wiped away by the enlightening sensation of awareness that changing anything will irreversibly erase that unique experience of listening pleasure
having both, the burson conductor and the violectric v800/v200 combo, makes the hd800 and lcd3 much more valuable, experience enhancing and pleasing, that apply the other way around and for each component as well
feeling like removing any of the components will make all the other lose in that regard
each combination completes itself in a unique way
realizing the virtual infinity of excellent and unique matches that there are, the search for the one "best", "more capable", "perfect for me" setup feels just like a limitation to the immense pleasure such pieces of art can provide us
ideally would be to just keep adding to it, however we all realize such pieces of art do not grow on trees, luckily one can trade in for something that will ultimately add to the pleasuring experience more that it will subtract
that said my relationship with the current ensemble is still in a phase of very fast advancing development, a very enlightening one that is... and increasingly pleasing...