once the profiler sent its sound through thehead rush refine the following way:
strum all strings, THEN, press refine... that way the kemper only hears the ringing out of the notes when refining, sometimes
the attack of the strings mess up refinig.
then choose either less gain or do not use the booster when profiling then increase the gain and use a booster of the kemper afterward an compensated using the dials in the amp section to manually make up for the tone changes. Listen closely, and manually change tube shape, compression, definition and sagging ...
Some sounds are just tricky to capture i tried to put everything together in this article https://thebommel.com/index.ph…rofiling-with-the-kemper/
Since the Headrush is based on the eleven rack i think it should work fine. I already profiled the eleven rack so i hope the headrush will work fine too
Don't give up man, especially with some pedals i profiled them 3 times until i was happy, the kemper simply has a hard time on some devices