My experience...
Berry Blue is NOT good for team flying, I won't cross lines with anyone using them - too many cuts in the past.
We tested Skybond on iQuad in hopes of exploring a sponsorship with Shanti but couldn't get past the "boing" or stretch we felt in the line on hard, sudden inputs.
Speed line, great stuff, but it has more threads and a less solid coating, so I've found it shows wear faster and picks up more dust, sand, etc.
LPG is still my line of choice, far and away.