More stable than expected. Just for reference, my "go to" from the tee is the Breakout, for roughly 250' - 270'. I have the Breakout in various plastics (though mostly Lucid) and various stages of beat-in.
I used to throw a Jade, and could get wonderful "S" turnovers until I lost that disc. I had been working in some Terns and D4's, but hoped the Sapphire would give me some more length and flex right out of the box...
Maybe it will beat in. I'll keep the Sapphire in my practice bag and see if it eventually works its way into my bag.