By the way, a good fitting usually requires about three visits. The first day is for boot selection, orthodic creation, measuerment of pressure points and tight volume sections, addition of foam to take up volume where necessary, check for alignment issues.
The second day is to check on the blow outs and dremmeling that have been done, do a little more dremmeling where necessary, recheck alignment (Sole and cuff).
The third meeting should be after you've ski'd in the boots at least two days (preferably more unless you're in pain), and have worn them at home at least five times (10 minutes at a time or more). The more you wear the boots at home, the more comfortable they will be when you ski in them for the first time.
You want to make sure not to do too much until after the ski days. The heel of the liner will pack in, the placement of the foot in the boot will move back, and the result may be a fit that is roomier in the mid-foot and toe box. If you are comfortable before the packing in, you may be swimming after the liner compresses. Especially in high level boots, deal with a tight fit for a few days (as long as there are no serious pressure points). If the boot was shell fit, it will get a touch more comfortable, but your foot won't have room to move in it while you're skiing.