The most appropriate length for a dragon disc staff is your overall height. This allows for a substantial playable shaft area, while keeping the staff a manageable length. 

With a shorter shaft, the playable shaft will be limited making it more challenging to manipulate the staff. With a longer shaft, the staff will be heavier and have the potential to wobble or bounce as the weight is focused at each staff end. 

We hope this helps, and if you have any questions please contact us!