I just got myself a new pair of boots and it's a half size bigger then my old ones. Anyone here knows how to adjust the look p10 to fit this. The bindings were mounted for 310 mm boots size. The new ones are 315 mm
get a screwdriver and at the back of the binding there is a plce where you insret the screwdriver screw it in or out until your boot fits in. If this doesnt work im afraid you are gonna have to get them remounted
Most shops will adjust the forward pressure (the little screw in the back) for free. I did it all the time, but if it does ned to be remounted then you could have to pay. With 5mm dif, I highly doubt that you would need to have them remounted, unless the guy who mounted your bindings was a total chump. Most bindings can move 15-20mm each direction.
yep, just make sure you get your forward pressure right. If you don't know how to do this with a look binder, take em' to the shop, cuz' it's important.