On Feb 19, 9:15 pm, wrote:

The way I was told to do it is to lay your upper body and arms across
the fueslage to spread the force as much as possible and never just
push down with your hands.

Just adding my $0.02: My PP CFI was also an A&P for American Eagle.
What he had me do was to find the middle-most spar (by finding the
rows of rivets) and push down there right where it attaches to the
empenage while also pushing down on the empenage with the other hand.

- Joe