klipsch cornwall iv upgraded crossovers

I bought Forte iv's instead of Cornwall iv's, because, to my ears, the Forte's had better bass. 

So... does anybody know of anybody that can upgrade Forte iv crossovers or  recommend what capacitors, etc. to use in an upgrade?

Thanks.

What about dampening the woofer baskets?  Think that would help smooth out the sound a little?  I know a lot of people have done the mid and tweeter.  

@perkadin 

if you don't like doing mods, fine. But don't consider a single minute that a Klipsch Cornwall uses state of the art components and that they didn't cheap out on parts. If they didn't, the Cornwall would be unaffordable to most of us.

Swapping crossover components for better DOES make a difference, sometimes huge; the question being "is it always suitable?" as it CAN happen that the voicing actually gets WORSE with upmarket components.

As for damping the horns, well, a horn should be inert, if it isn't (and thin plastic isn't) it can be improved with damping material. Here again, bean counters had the last word. It's free world, do it or don't, but don't call it snake oil as it's very real.

I have been running CW IV's with the Dynamat dampening upgrade as well as the VCap Odum and Path Audio Resistors per Don Sachs suggestions.  I love these speakers!  I still find the bass to be just OK, plenty of it, just a bit flabby and undefined IMO.  I have the CW's five feed out from front wall and have used a McIntosh MC275 VI as well as Pass Labs XA 25....augmented with four REL's, two front two rear.  Even with all RELs off, same sort of presentation.....a bit flabby and undefined.  Don't get me wrong....it's not bad, just could be better.  Surprisingly, with more power, the McIntosh tube amp actually a bit better control of bass than the Pass.  My question is, have any CW IV users experimented with the Townsend Isolation bars and gotten favorable results?  and how do your results compare to no isolation?

Thanks in advance!

@ptrck887 , Herbie’s Giant Gliders tightened up the bass for me, as well as making it easier to slide the speakers on hardwood. I affixed one under each corner with double-sided carpet tape.

BTW, I performed the same mods as you, along with swapping in WBT NextGen binding posts, and likewise love the results.