Jim,
Yes, please be patient... Of all the various cables I fabricate, the BI-WIRED speaker cables take (by far) the LONGEST time to "burn-in" and "settle" into one's system.
There's quite a bit of copper & dielectric in the bi-wired speaker cables... Once, they're "burned-in", you'll be extremely satisfied! They will be much better than the single-run version with the speaker's metal jumpers... trust me!
Cheers,
Pete