Tweeter Capacitor Upgrade (Coincident PREs)

Agree with advice regarding the inductors, you can easily degrade the sound quality if not sure of specific specifications. Thread carefully. 

Don't agree with advice to rewire as the internal Coincident wire is very good quality. 

Brownsfan (Bill) nice approach for your tweeter capacitor. Some folks don't like to use bypass capacitors but happy this solution worked for you. I went Duelund CAST copper foil capacitors at the tweeter. 5 years later I remain  very pleased with the improvement. Did you consider changing the internal wiring? I sure didn't. 
Charles 

@charles1dad, I did not consider replacing the internal wiring.  I have used Coincident wire externally, and found it to compare well with a few other options in the same price range, so I didn't think it would be an experiment with a high probability of success.  I did use a few inches of Duelund Tin/Copper here and there where I needed to make things work, as there was nothing extra to work with.  I also did not consider replacing the binding posts.  I spent ~ 1200 on the project, and don't feel compelled to go any further.  I am more than pleased with the speakers as they now stand, so at least in my case, going further might well be diminishing returns.   

The op is starting with speakers that are several levels better than my super victorys in stock form.   I think replacing the solen cap in the PRE is a no brainer, and would advise he start there and proceed slowly.   I suspect the Duelund by=pass caps might give the accutrons a bit too much resolution.  They are not lacking in air and extension even with the Solens, and he could end up with a hyper detailed presentation would be my concern. 

Hi Bill,
As usual you've made wise and very rational decisions,  binding post for example.  No good reason to change the Coincident binding posts. They're pure solid copper as opposed to the typical utilized brass posts
Charles .

"I suspect the Duelund by=pass caps might give the accutrons a bit too much resolution. They are not lacking in air and extension even with the Solens, and he could end up with a hyper detailed presentation would be my concern."
It works opposite.
I put Duelund Cu-Sn bypass (in my Altec 604E Werner Jagusch Crossover) bypassing old vintage oil capacitor.
As result a lot of music that sounded bad before started sound good.
After that I replaced old vintage oil capacitor to Duelund RS capacitor with the same bypass Duelund Cu-Sn capacitor. It gave me big improvement in transparency and musicality.
After that I exchanged Belden internal wire to Duelund 16AVG Cu-Sn wire. I can say this wire is magical.

Let me know if you want to buy Jupiter caps. I have different values than I would like to unload.