"they heat them up and then you step on them...."
Oh, please please please be so careful with those heat 'em up insoles! They mold to your unhappy foot, and then force your foot back into that unhappy position with every step (or spin). You want someone who will do the insoles to CORRECT the unhappy foot, not just mimic it.
For example: if you have a dropped met head that is causing hot spots, then step on the moldable insole, you've just made a mold of a very dropped met head (full pressure on a soft surface = big drop). Now every time your foot meets that insole the met head has no choice but to drop! There's nothing to hold it up cuz the insole is dipped there!
Make sure the person doing the job knows what position to place your hindfoot relative to your forefoot, and that they align your tibia to your 2nd ray. Your calcaneous should be in a neutral position. (most end up getting molded into a valgus position) The salesperson should physically correct your foot and cue you how to hold that correction, not just have you step on the thing.
Superfeet runs an educational program for the heat-molders, make sure the person who does yours has been through the entire program, not just taught by someone else who did.
Oh, those heat moldable over-the-counter insoles make me so nervous.....
I'm gonna have to go have a lie down and a piece of chocolate....
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson