It is highly recommended you do not buy boots you cant try on.
As long as your heel is staying down in the liner, there are no weird pinch or pressure points, your toes are hitting the end but not curling over, in those Jacksons, it's a good boot.
Go ahead, drink that kool-aid.
FS: Forum Sauce 142 $200 plus shipping
FS: Flux SE30 $75 plus shipping