In reply to Lippy_Brightman:
Hey Lippy, I have horrendous feet for any boot being both long, crazy lanky and super low volume. I've tried virtually every boot brand and done everything there is in order to improve the fit, and the suggestions below all really helped me:
1 try orthotic insoles, they hold your feet much better than the ones that come standard.
2 try different knots to really hold your ankle in place. Look up a "surgeon's knot".
3 volume reducers (both for the sole and the tongue). This may sound counter intuitive for you if you're feeling pinching, but if the foot is firmly in the boot it will move less and may help with the blister
4 breaking in the boots. The boots will naturally become less stiff which should help. You also need to break your feet in to get them used to long days
5 find a brand that best matches your foot shape. Prob not something you want to hear if you've just spent a tonne, but sometimes that's the only option.
6. Try different sock configurations, this can be a game changer! Try 1 thick sock, then thin sock and thick sock etc
7. Just get some approach shoes, they are far more comfortable anyways 🙂
for reference, I have just under a size 11.5 foot and a size 12 boot is fine for me but it has to be la sportiva or Arc'teryx, no other brand will work (and I have tried!).So I don't think it's a sizing issue you have, more likely you need to tweak the fit using the above or the boot just isn't brill for your foot shape.
hope that helps