Bob,

Some repair shops can do this, but know it will increase the swing weight.  You may also send it back to Titleist to have the club re-shafted to your desired length.

Cameron

1-888-TITLEIST

I extended both of my wedges by 1/2" last year.  I'm sure if you add an inch it might affect swing weight, but it is real easy to do.  I ordered the extender online, bought some epoxy at Lowe's, cut it to length with a hacksaw and put a new grip on.  Because the end of the shaft doesn't have a lot of torque a standard epoxy should work great.  Good luck.

All my wedges by Voke are 1/2" longer than standard...if yours are 1" longer you must be tall guy! I am 6'-6"...that being said personal preferences aside I would say it depends since your lob wedge you may prefer a little extra swing weight vs. a 48 or 52 but on the other hand you can always grind down the head to make it lighter on the back side so not affect the bounce and sole grind already part of the club.  JAT, Good Luck!