Boots fitment question

[doggy]

Thanks to another member i managed to get myself a pair of Mammut Monolith for £103, but I'm not sure of the sizing. This is a bit of a silly question and I kind off know the answer already but I juat wanted to run it by evryone in here first.

So my left foot is a fraction bigger than my right foot. Now when I'm wearing the size 9 boots my left foot is snug, quite snug and my wee toe is feeling a bit of pressure.
With the size 9 and a half I have a bit more room. I've tried heavy winter socks and liner socks with summer socks over them, all are a bit tight on the left.

So whats the best way to fit boots? Go outdoors aren't much use.

Thanks.

[doggy]

Alos, they're B2 boots so will be used in the winter time.

[gman]

My left foot is bigger too, quick Google suggests this could be common for right-handed folk. You can compensate (socks, insoles) for boots that are slightly too big, but not slightly too small so I always make sure the bigger foot has the best fit. If it's too snug this could lead to strain/blisters further down the line. Your toes shouldn't hit the front of the boot on a downward slope or when you kick something, if your little toe is squeezed against the side you could get blisters/lose a nail. Andy Kirkpatrick has boot advice, it's aimed at climbers but relevant for B2 winter boots.

http://www.andy-kirkpatrick.com/articles/view/getting_the_right_mountain_boots

[doggy]

Thanks.