HELP AFTER MY MODS, My tweeters are subdued and weak-

Hi Sean, Well since its your thread and you asked,  I'll go a bit off subject and answer your question.  There are some general rules about cables, that overall hold true... overall, but not entirely...  Heavy gauge solid core transfers bass better, lighter stranded cables transfers high end better. Of course a lot of other things affect this.... wire coating (skin effect)  purity and type of copper or coating on copper,  is there a braid or only multiple individual strands...etc etc etc.  Myself,  My favorite cables were made of 38 gauge cotton coated litz.... Multiple stands were used in several different braids twist etc until we found the right mix.... final result was about a 9 guage cable... this was a very pleasing, yet detailed cable.  In your woofers, I would probably use the heavy belden on the woofer, then make sure that you use one of the nice standed wires on your tweeter.     
As far as your speaker cables, I'm sorry, but I have no experience with the Tara Labs,  that's why I gave a very basic elementary cable explanation,  to help you discover what might make a difference in your system.  Next,  don't throw in the towel yet,  your speakers will continue to go through minor changes for quite awhile.  I hope this all helps,  Tim

I'm a hififan, I tried the dials on all settings, with no change. 

The caps I replaced were:
 the electrolytic, (2- 6.8uF , 2- 8uF, a 47uf and a 10uF) 
Also film caps, 3- 3.3uF, 2 -10uF and a 4.7uF.
Two polarized electrolytic 2200uF, but these I replaced with electrolytics.
 
How can I tell what the resistance should be, that device that Tim posted , will that tell me the correct resistance? If I measure the other crossover that I haven't changed any electrolytic caps out of yet. 
If I find out the correct resistance can I change the resistors to the correct values. 
I want to keep the jantzen caps but I don't want to alter the intended resistance, can I accomplish this by swapping resistors with an higher resistance?

Eric, hififan, Tim, what are your thoughts on the above post. I want to correct this issue so I can retain my Tara labs cables,,, if that's possible

By the way,  I completely agree with georgehifi's recommendation of pulling these out from the wall also to start.  Hopefully leave them out,  but if your high end doesn't return as strongly as you like, as you move them back towards a way,  the higher frequencies should be what you hear reflected first, reinforcing or enhancing the high end a bit.... good luck in your journey brother,  sounds like fun. 

How can I tell what the resistance should be, that device that Tim posted , will that tell me the correct resistance? If I measure the other crossover that I haven't changed any electrolytic caps out of yet.
If I find out the correct resistance can I change the resistors to the correct values.
I want to keep the jantzen caps but I don't want to alter the intended resistance, can I accomplish this by swapping resistors with an higher resistance?

This one cost more, but easy to read:
https://www.amazon.com/Peak-166225-Atlas-ESR70/dp/B005NIBEYU/ref=sr_1_1?s=industrial&ie=UTF8&...
Yes, you can swapping those resistor to fine tune or simply add a resistor in series to the new caps to make the ESR same as the existing caps.