rewire older speaker internal wiring?

Capacitor choices are near-limitless!
From Russian military to fragile bees wax you can spend anywhere from a few bucks for say... Solon all the way up to Stratospheric for Jensen or Mundorf or ??

Set a budget for how much you think it's worth, and how long you intend to keep the speakers. They ain't getting any younger!

If you intend to keep them forever and be buried in the box they came in, spend whatever it takes. Any inductors and resistors can be replaced at the same time with audiophile grade parts.
Check Parts Express or Madisound and come up with a plan.

I am currently working on such plans for my panels, doing a rebuild of the STOCK x-over in my 1.6 maggies. Many choices, not the least of which is that I will probably end up with an external x-over since the proposed cap upgrade (Clarity SA) and new inductor (aircore) take up LOTS more space.

Many people experienced in this rebuild will tell you to use a parallel 'bypass' cap of some small value.
Don't forget that caps in Paralled ADD values.

Solon is a good choice as is Clarity SA for more $$. It gets wacky after that and in my OPINION should not be purchased unheard or without a knowing recommendation.

My panels start wit Solon and I am pricing out a new x-over of identical design to original, using Clarity SA. I could spend more $$ on a single Mundorf Gold/Silver/Oil (whatever) than I intend for the entire project!

Here is a link to a page on humble.

http://www.humblehomemadehifi.com/Cap.html

Please read it and know it is just 1 guys opinion, but an educated opinion.

Pick your price: pick your poison.
For 4311s, you may not want to go more expensive than the Solon.
Clarity SA for more money?
Mundorf?

How deep are your pockets?