Spent a couple hours on the range last night with all 3 driver heads, SIM, SIM2, SIM2 Max. Granted my feedback isn't on the same level as most of you but here's what I walked away with...same loft, shaft, and setting for each one just to be clear. SIM head seems to be the lowest spinning head, if I don't lace a bullet power fade I'm missing way right, and almost no option for a draw (even though that's more on me than the head). SIM2 Max felt good at first, easy to hit, but the more I swung and especially when I wanted to really go after one, I would notice very spinny high balloon type ball flight and distance was compromised. For me the SIM2 was the perfect sweet spot in terms of spin, launch, and workability. My stock swing was pretty straight with this head, I was able to hit the power fade, and shockingly I could even hit the slightest tight draw. Most importantly, I didn't have a single one of those hard right misses that have been haunting me lately. I'm going to put the SIM2 head into play and see how it performs in some live action. For reference, I had 2 of my buddies with me (high handicappers 18-20), absolutely loved the SIM2 Max, the higher launch and forgiveness was exactly what they needed. Peace out!