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Yesterday, after heading back to Golf Galaxy, I was told I should have gotten a stiffer flex for that club. 
Why, you might be asking, did I head back there, and why was I speaking to them about the club?
I BROKE THE FRIGGEN HEAD OFF OF IT RIGHT ABOVE THE HOSEL!
After some judicious applications of self-restraint to avoid punching the smarmy kid's grin right off his face who was amused he'd met someone who could break a club, I did a little 'net research.  This particular model of club has a history of doing this, particularly with harder-swinging guys.  Problem is, they don't MAKE this club loft in a stiffer flex.
Since I bought the club second-hand, it wasn't "registered" to me, otherwise, I could have sent it back and Callaway would have replaced it, likely with a brand-new model club - FREE of charge.  As I'm not a fanatic of paying for one club what an entirely new set of irons cost, I'm NEVER going to be the guy buying a new model of driver from ANYONE, regardless of how well I hit it.  $400+ is SILLY to pay for ONE club.  That club cost me $85, and I got THREE rounds out of it, and yesterday's half-round. 
To help with global-warming issues, I soothed my pain by throwing the clubhead into the blazing fire we had going.  The soleplate took FOREVER to melt!
I bought a new/used replacement.  Stiffer flex, less loft (9
o instead of 11
o), horrible Callaway original grip.....I hit this one ok, nowhere near the same length.  I lost ~25 yards EASY by dropping the loft.  I like it better than any other previous driver I've owned, but I HATE it in comparison to how well I hit my higher-lofted model that broke.
I stopped keeping score after it broke.  I was up and down, but I was even par through 5.  My game DID go to hell after that.