Which size should I keep

I have 2 pairs of Thursday boots one a 10 and a 9.5 standard im having trouble deciding what fits better. The 9.5 feels nice and is snug on the forefoot which is good but my big toe nail when walking forward does tap the roof of the boot. It also hurts the top of my foot some when standing on my tippy toe but doesn’t hurt the sesamoid. Whereas the 10 this doesn’t happen but it is a bit looser on the forefoot. It also hurt the sesamoid( the ball on your foot before the big toe) when I stand on my tippy toes just a little. Which one would be better. Both boots have room from the front of the boot the 10 having a slight bit over and inch and the 9 right at an inch of space. I have 10 days to send one back and keep the other. Both are Matt black captain storm king.