Effective Loft.........and adjustable Drivers | Golf Monthly
No it is no possible to actually change the loft of a metal wood head, (this is because the sole of a metal wood is long enough from front to back and will sit the same way on its sole no matter how you angle the shaft coming out of it, to actually change the loft of the club you would have to mill the face down) all the bending or SureFit Hosel adjustments are changing face angle that changes the effective loft of the driver (look at any of the tables and in small print below it says EFFECTIVE LOFT when face is returned square at impact
for every 1* open you make the face the effective loft decreases by .6* less. therefore the .75* increments that Titleist has been advertising means the face angle actually changes by 1.25* ( .75 x 1) / 6 = 1.25
therefore your question on if the stock driver is 9.5* at .5* open and you change it to 10.25* of EFFECTIVE LOFT then the face angle would become 0.5* - 1.25* = .75* closed
if this whole post was too much for everyone to take, just remember it is no possible to change the true loft of the face on a metal wood just the effective loft.