on knott's advice I tried a pair. they are really great. I actually have 2 of them so I can stop switching them out of my shoes so much. She also said to wear them a little bit each day so that I don't aggravate my muscles. actually I tried to bike with them after the first day and my arch inflames. listen to knott!

ps I've only got the Berry's but since they work for me I didn't see the point in anything else.

pps I've tried other insoles even the custom ones from REI and they did not work well.