Yea standard SZ was very inconsistent for me... or more likely im very inconsistent lol. There were times when I walked 9 by myself id hit both drivers on a wide open par 5. SZ would be 10 - 15 yards past the Xtreme, but then next hole would be 25 yards shorter bc a less than perfect strikeThe Xtreme is way more consistent for me as well. I played around with the standard with the Ventus Black and had some success, but there is something about the standard head where I can rarely have back to back outings and get similar performance. That head is too unpredictable for my swing.
SZ has more potential but Xtreme is the clear consistent performer in both distance and accuracy
I couldn't keep the SIM in the air. I tried it late last year for sh!ts and giggles and hit more knuckle balls with that thing. And I din't like the sound on it.
Between knuckle balls and super low launch it just didnt fit me this year. Which is weird bc many reviews talk about SIM being easier to launch this year but I found m5 all last year to give me 13 - 14* launch and go forever. SIM is faster yea, but m5 gave me high launch/low spin