Adjust driver loft?

[NativeTxn]

Is it possible to adjust the loft of a driver?

For example, I recently bought the Nike 5900, regular flex, 9.5* used from Golfsmith as I had been having trouble finding the 5900 in 10.5* (because of their policy, I have 10 days to return it and get a 90% refund).

I stopped by a Golf Galaxy later that day and happened to find a new 5900 in 10.5*. I was looking for the 10.5* as I've read that a loft higher than 9.5* may be better suited for me as a beginner as it will produce more back spin and therefore less side spin, which should help with decreasing slice some (at least in theory).

I have not hit the 10.5* yet, as I can return it for a full refund within 30 days to GG ONLY if it is unused. I hit 10 balls with the 5900 9.5* today at the range (as well as hitting 10 with my current TM Tour Buner 9.5* for comparison). I was hitting both fairly close, though probably still slicing the TM a bit more when I did slice it. My best drive was the last one with the 5900 that went plenty straight and farther than any of the others I hit today.

Since this was only the first time with the 5900 9.5* I don't know whether the 9.5* will work well or not in the long run. I am going to try it again next weekend, and again compare it with my current TM.

In any event, if I decided to keep the 10.5* because of the theory that it will help some with a slice, etc. would it be possible to decrease the 10.5* to a 9.5* because I later decided that a 9.5* was in fact better suited to my game?

Thanks.