I purchased a new cobra S2 driver.  My swing speed is up between 3 to 5 Miles per hour and distance has increased  by  about 10 yds. I tested my old driver against the new one. My old driver was a taylor made R5. Has anyone else purchased new speed drivers and gotten this type of result. Is equipment getting that much better. I dont think its me, I'm 60 yrs old and haven't  been lifting to many weights lately. Just a few 12 ouncers.