What seems to be the best way to get the lines in equal length?
This seems like the biggest hurdle to using the Spectra lines.
One "solution is to use a handle that has the sliding wire.
I figure that you are gaining so much on the lack of play using the Spectra, a little flex in the handle cable won't kill you.
A mini hard point handle with mini differing clips would be GREAT.
Or, if the line spread is acceptable, one of the combat handles with the thumbscrew for "on-the-fly" adjustments.
So many options, I guess just get them as close as possible and then use any of the above solutions.