[smitty4]

For one thing, it varies from person to person. Some folks just recover faster than others. For example, older lifters tend to need more time to recover. I know I used to recover faster when I was younger.

The other factor is the volume of your workouts. Assuming that you are not doing a high reps on each set, you are not doing a ton of volume. To me, that would mean you could work out more frequently than someone who does marathon workouts with tons of sets and reps. I would think you could use a 2 day recovery time.

On a side note, I would tend to do fewer benches and more legs to balance things out. After all, your legs are half of your body...yet you are only devoting 18% of your sets to working them.