i ran into the same problem with the hyperflash when i installed my switchback leds in my front turns. i was "shotgun" troubleshooting by just swapping the resistor from wire to wire until i found the right one. i found out that it will take a little while for the computer crap to figure out that i got the right wire and to slow the flashing back down to normal. how long did you have the flasher on to see if it went back to normal?