Celestion V30 pairings

Hi,

I have a unique situation, looking for speakers to pair with Celestion V30's in 2X12 open back cabinets.  I currently run an Avatar 2x12 cab with 2 V30's under an Egnater Tweaker 40 head.  I also have an empty 2X12 cab that I am going to start using at most (not all) venues.  

Initially I was going to pair two WGS speakers in the empty cab, and that would be fairly easy, but after alot of consideration I decided to put one V30 in each of the 2X12 cabs and add a WGS speaker to pair with the celestiions.  This way, if I am just using one cabinet, I will have dissimilar speakers paired.  I looked up the V30 specs and the sensitivity of that speaker is 100db, which is the same as the WGS ET90 and Retro 30.  I like the Retro 30 alot, but not shure how the V30 would get along with it.  But, would I need to run equally sensitive speakers together?  My thoughts have run from adding 2 ET65's (or Retro 30's) one to each cab, or an ET65 to one cab and a Retro 30 to the other, pair the V30's with a G12C, etc....  It is consuming my daily thoughts, back and forth.

Currently, I am not in love with the Celestion V30's, but they get the job done.  I really don't like their aggresive attitude when recording or playing softer passages and songs.  But, when playing at volume, I have to admit that they do sit in the mix nicely and have the ability to cut through the mix when needed.  What I am looking to do is add some dimension to my current rig, and change things up a bit.  I am intriqued by mixing and matching speakers, but since i live in the rural midwest, I have no chance to test out speakers or experiment with different pairings. This will be a leap of faith.

We play what I call aggresive blues/classic rock, and currently I play Strats and a Tele.  Any ideas, suggestions, and opinions will be greatly appreciated. 

Craig

PS  Woke up this morning to actual temp of -9, brrrrrrrrrr...