Offensive Rebounding Question

[RaysGoodLiquor]

I have a 7'3 glass cleaning lockdown that has offensive and defensive rebounding maxed out. I also have rebound chaser HoF. I average about 15 defensive rebounds a game, but only get 2-3 offensive rebounds. I have even tried standing in the paint to wait for shots, but I've had defenders literally reach through my body to get the rebound. It makes it impossible to make a Charles Barkley build because you just can't consistently get offensive rebounds. Is this by design? When I press jump on a defensive rebound, it's like my body is a homing missile to where the ball is going to go, but it's the exact opposite on offense.