Positive experience ? you are either fit to pass or not ..
Cheapest DAME is the one closest to you.
haviator, disregard this clueless comment. You do have to be careful who you see these days, there are zealots amongst the DAME community. Unfortunately the fellow I would recommend has recently retired. Umair out at Gisborne was good, dunno if he's still doing it. Also, be extremely careful with the questions you answer on the online portion of the medical process. Misunderstanding what's being asked can have consequences.