Lowering the spring tension might help. Lowering the heel will definitely help. Pointing your toe like that is like trying to use your sticks at a 45 degree angle.But he also says he's 'tightened the spring as far as it will go'.
The opposite of what he needs if he's not hitting the drum, surely?
Fixing the angle will release tension in the foot used to keep it at such a steep angle. Those leg muscles can then be used to help operate the pedal, not just keep the ankle way up in the air.