I have a squealing issue since I have purchased my profiler, and I use plexi and jcm800 profiles, not high gain profiles.
This week, I have solved this issue by lowering the pickups of my gibson R8, mounted with custombuckers.
But this squealing issue is still on when I get closer to my cab in order to have a natural feedback.
It's the first time I have this issue with those pickups, and when I use my 50w silver jubilee clone, I haven't problem like this, even at loud volume...
It's very problematic for me to not create natural feedback...