We appreciate your feedback. The Ecotech Versa Tubing is specifically designed for durability and compatibility with the Versa pump, ensuring long-term reliability. While it is stiffer than traditional silicone tubing, dosing tubing does not have to be 'soft' to function properly. In fact, the added rigidity helps prevent collapse and maintain consistent dosing accuracy over time. Proper installation may require warming the tubing slightly (e.g., with warm water) to improve flexibility during setup.