Bi-wires links for speakers ?

I would try replacing the links with a thick 12awg. You should not hear a difference because there's none.
 It's only 3inches between the posts, so resistance should be in the neighborhood of 0.000003 ohms....in other words, there's nothing to fix.
I like the manufacturers links on some speakers because they look neater than wire, but everyone is different.
No worries about jumpers... manufacturers would not compromise their signature sound by not having the metal links replaced by a 3" wire if it could  make a difference. 

I have always felt that if the manufacturer went to the trouble of offering biwired terminals, you should get biwired cables-After all, you spent over $2.5K on the speakers.
The Tellurium jumpers should be a modest upgrade, should you really not wish to do so.
Bob

Agree on biwiring, if it is there, you may try that.  sometimes it makes a positive difference sometimes not; many manufacturers such as focal and harbeth and others have admitted that the reason why they offer biwiring is strictly because of market trends. Focal actually dropped the biwring posts on many models.

You’ll get many different opinions on this. Yes, it is true that some manufacturers don’t believe in biwiring. Although Harbeth does not believe in biwring, they have provided biwiring terminals on most of their speakers to satisfy market demands. Chord Cable has dropped all their biwiring speaker cables as they maintain their stand that a single run produces better results than biwired cables.

The other good reason speaker manufacturers provide biwiring terminals other than following the "trend" is to give users the flexibility of biamping with a pair of amplifiers. That will only useful if the loudspeakers are demanding.

Coming back to the question of aftermarket bi-wire links. You may try some but personally I wouldn’t bother. The difference in sound quality would be minimal even if there is a difference. However, there is no harm trying if you have some money to spend.