Well. I cannot comment how those two pickups work together but can understand that they might not be someone`s taste. For example I think that VHII neck wouldn`t be my cup of tea either. I have only an experience with CS neck and even CS lack that edge and cut for me in mahogany guitar, a little bit too smooth without the bite. VHII seems to be even darker and rounder and smoother.
VHII has a really warm and round clean tone but it has nice highs, especially when split.
Undergain, it has a nice bite in the high end which becomes more pronounced the more gain you bring on tap. The pickup is very dynamic and responds extremely well in terms of pick attack.
The VHII has a more gritty sort of tone, similar to a Nailbomb, while the Rebel Yell is very 'consonant', open, and 'smooth' sounding. The Rebel Yell bridge pickup has way more midrange and it is much brighter when clean, but I will admit that I almost never use a bridge pickup for cleans. The Juggernaut Bridge PUP is the only exception to this rule for me. When I buy a bridge pickup, I am concerned how it will handle gain, and perform for both rhythm and solo work. So, my primary interaction between the VHII and the Rebel Yell is while both pickups are under a medium amount of gain where the tone is somewhat compressed but still very dynamic enough to clean up well if you back off the pick attack or volume pots.