If possible, get canting done via your boots! Here's why: while you may change skis during the day, you'll rarely or never change boots; if you have "system" binding on your skis, or you later purchase a set of skis with system bindings, they are very difficult and sometimes impossible to cant (you can't mount a cant strip under a system binding because it mounts to rails built into the structure of the ski).
If you have Lange or Atomic boots, the stock toe and heel lugs can be removed and replaced with their canted lugs. If you have boots without interchangable soles, you have a couple of other options. If your cant requirements are less than 1.5 deg and your boots have adjustable cuffs, it can usually be done inside your boot with wedges under your liner or foot bed, or with a "posted" custom insole (the bottom of the insole is ground to incorporate the cant requirement). If that doesn't work, a GOOD shop can grind the boot sole to the correct angle (you shouldn't do this at home becuase the top of the heel and toe lugs then need to have material added on to keep the binding interface working correctly).
If you haven't gotten a professional boot fitting with an alignment (side-to-side) and balance (fore-and-aft) assessment, you really, really, REALLY should! Women are particularly prone to alignment issues due to our wider hips (Q-angle issues), and generally looser and more flexible joints. Oh, and your cant and balance requirements will need to be reassessed if you get new boots (ie. I need 1.5 deg on my left in Langes, but no canting at all in Salomons).
