i recent bought a new bike and the chain stays are curved in which places my catee v3 at a little wider angle than it used to be so my cadence is only working sporatically. i have the magnet simply "attached" to the back of the pedal because that is the position that puts its the closest to the reciever. the instructions say that it should be 3mm, but mine is more like 5-6mm.

Is there a thicker magnet out there i can use, or can i double up on the magnets to decrease the gap to the proper specs? i would like one thicker magnet instead of two jsut because it is not attached in any other way that being simply magnetized to the back of the pedal axle and it would be less likely to be lost