Replying to New liner old boot question. +K for help

Recently my boots have been giving my feet a lot of problems. There are several hotspots on each foot that usually end my day with blisters. I feel like the main reason for this problem is that my liners are positively thrashed. Before i bought these boots I had my foot properly fitted so I know the problem isnt the shell.

Ive been looking at getting some intuition liners and I have the chance to get some for a rather cheap price. However the liners are for a 310 BSL where as my shells are a 315 BSL tecnica boot. Will these liners work or is the 5mm to much of a difference?