We advise selecting blade stiffness in correlation with your overall weight and physique;

• Stiffness 1 - Soft - Weight under 45kg (~100 lbs).
• Stiffness 2 - Medium Soft - Weight between 45~70 kg (100~155 lbs).
• Stiffness 3 - Medium - Weight between 70~90 kg (155~200 lbs).
• Stiffness 4 - Hard - Weight between 90~125 kg (200~275 lbs).