Face out on the V shaped dipping bars. Get your hands out as wide as possible with your palms in a semi-reverse grip. Try to stretch down as low as possible. Then throw the elbows forward and with the elbows forward, try to “pry” your way up.
Don’t press the arms straight, using the pec-triceps connection, pull straight using the pec-bicep connection.
It’s more purely pec work. The triceps try to steal the work away from the pecs. The biceps need the pecs to do their job.
When you do dips in this fashion, it’s hard to get even 6 reps just using body weight.