Synergistic Research IFT bi-wire

Hello,
I have a question about adapting SR Acoustic Reference IFT-Bi-wire speaker cables to a single set of binding posts.

There seem to be two ways to do that;

1. Insert two spades in a bindig post

2. Block the spade of jumper wire end-side with some tapes to avoid shorts and put the main spade in the biding post.

Do you have any idea of which will be better?

BTW, IFT-Biwire, I understand, is a typical single wire speaker cable soldered with a jumper wire at the speaker end spades that are big enough to accomodate two cables at once.