Just installed my Black Dog bridge and Riff Raff neck into my Tokai LP. Black Dog not as dark as i had thought. Nicely balanced, with deep rich mids, but still enough high end for a nice tone. The Riff Raff in the neck is another specimen. Less gain when i switch from bridge to neck is evident, much cleaner pickup. Less forgiving for any sloppy playing. But overall, a wide range of tones from that combo.
Not important now, as the OP has decided for a VHII neck. :)