Re: Types of Jo
I bought a Diamond wood staff a few years ago from Museum Replicas. It's a great walking stick, the weight is better for upper-body exercise and it looks less dorky than heavy hands or free weights. It can also double as a jo in an emergency - feral dogs or even swans - but it would just tear up my back to do kata with it.
You might do serious damage to your lower back and not get any real benefit.
Would you pick up the heaviest weight in a gym your first day?