I'm both B1 and B2 is GA .Find I spend most of my time doing B1 tasks.
Been thinking I should change my resume to B2 only. Not many GA operators can understand what can be done with a B2 guy.
Avionics are an after thought for most operators.
Saying that I would do B2 only if I had my time again. More mentally stimulating.Not sure about that in the airline world.