I just competed in a geared competiiton.
I used a titan kitana benchshirt, a scuba suit and air tank.
I got on the bench and then we filled the pool, after tat we loaded it with with 500 lbs on both sides. I pulled it off with some effort but I was able to do it.
So now my new max bench is 1000lbs.
For all the haters, when you lift underwater you really save your joints, its not about more numbers, its about safety and specialization.