I'm slow, but I do poor work!
But at least you're expensive, too.
I'm really looking forward to your listening review. It's not that I don't enjoy and appreciate the setup/engineering stuff, but it would be nice to see you relax
Keep in mind that the differences you perceive in the timbre of the VP150 are not necessarily a product of the speaker, but more likely from placement/positioning. The way I understand your setup, you probably don't have a lot of flexibility there, but it's worth trying a few things before providing grist to the insatiable "VP150 Weak Link" club.
I don't know why you WOULDN'T cross the VP150 at 80Hz.
Have fun. Post pictures.