I need new running shoes and thought about having gait analysis first before I buy them. I understand that a treadmill is used for the analysis but I have never used one before and I heard that you run differently on one. As I only run outdoors am I wasting my time having the analysis done? I have done the wet foot test and looked at the soles of my old shoes so I have an idea that I have arches that are between neutral and high but haven't a clue what type of shoes I need. It's like a minefield and I feel so confused! I keep putting it off but I know I need to do something soon. Can anyone offer any advice please?