Anything where you are accelerating away from mother earth (i.e climbing) is conducted at >+1 G.
Any initial pull up to entry in a barrel roll is therefore >+1 G. Accelerating downwards and recovering to level flight will require >+1g.
QPQ, A barrel roll, for the full aerobatic manoeuvre, is not a 1g manoeuvre.
Flown them in both fixed and rotary wing. Fling wings make things a bit more exciting, especially catching the NR rise on the recovery!