I'll third on the use for THS, especially ljocampo's situation. Ball is best on long, flatter oiled sport shots, and I've had success on heavy inside/dry outs, but, yes, you do have to have some hand in the ball--however, I've never had good reaction playing fallback. Of course, if you're playing fallback, you've probably already stepped down a few ball grades. Once the Invasion is back in the bag, it stays there for the rest of the event.
Shorter pattern with a stripped backend? Worst scenario--ball hits a stripped backend like a kid at a McDonald's playground.
If any recall the Passion...yeah, I'd put this ball in that realm--not a crazy, googley eyed witch ball exactly, but like Passion, it's good for only a few circumstances. I'm trying to remember if the Passion was good for any, though.
HG: 300 | HS: 768
Ebonite: Challenge, Exceed, Innovate
Storm/RG: Cell Pearl, Tropical Breeze
"Only NBC or CBS for me. New Ball Carry or Clean Ball Strikes. Channel 4 and 14 or nothing." -- D. Ryan