Yes, while it is possible to combine different bungee band strengths in order to adjust your bellicon bounce, the five bungee tensions are designed specifically to cover all different weight classes. The individual strengths are engineered and tested to be used one-at-a-time, so using a mixture of bungee stengths (for example, medium and strong) may affect the overall durability of the bungees -- especially the firmer of the two strengths. Also, this is not considered normal usage and can affect your warranty. Some customers purchase a second set of bungees and switch the full sets out periodically.
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