I used to sell these when I worked in the sports industry and we sold loads...I was amazed.They were about £15. I then worked for a professional squash player who used them and he had terrible problems until he tried Sorbathane. I've never used them myself but going on what my customers used to say I'd go for it. Not sure if it's still the case but they used to do flat insoles,moulded insoles and heel inserts.It's probably worth looking at their website to see which ones would be best for you (or of course ask the podiatrist)