Which model is right for me?

Whether its a Master or Grandmaster, it comes down to your preferred sitting style and body type. If you sit cross legged, or need more space in the hips, you may want to choose the Grandmaster for its open seat. Those who want a tighter more aggressive feel and do not cross their legs will prefer the more structured frame of the Master. Both chairs have the same weight limit and components, however larger frame people will want the Grandmaster because it has 6 inches of extra sitting space.