alternate method of bi-wiring

That is "shotgun" and it can have some benefit with some wire but will not duplicate bi-wire.
Look for a crazy post a few weeks back on "shotgun bi-wire".WARNING!,AVISO!,CAUTION!, reading this post may make your mind melt(it is real confusing to explain and even more confusing to read).

The idea behind true biwiring is that more of the current from the amplifier is sent to the midbass drivers. (They usually require more power than tweeters) Simple circuit equations tell you that if you have two wires connected to one source, more current will be sent through the larger diameter wire.

Maxgain's WARNING is right on regarding that thread on "shotgun wiring"-- I sort of participated in it too. Thinking about it too much can turn your brain to cheese. Still, there's worthwhile discussion there-- if you take it slow. I use what is called true bi-wiring-- that is four individual wires to each speaker. Your speakers must be bi-wire ready, ie each must have four terminals to do this. GOOD LUCK. Craig

It is actually called double bi-wire when you use two pairs of cables. Shotgun is where you use double cables to non-biwire speakers. Whatever; it should usually work well because you have a higher total gauge for each driver.