Seriously, though ---
My Rivera 4x12 weighs just over 100 lbs now. Would an extra 40 lbs really make a difference at this point?!! If the tone is worth it, I'm gonna do it.
I think I'll get 2 at first, throw em in my Marshall 2x12. If the tone is that good, I wanna get 2 more, throw em in the Rivera, and then get some hemp jobbies for my Marshall, or those Heritage thingies everyone is raving about.