Which MK20 model is considered more suitable for surface supplied diving?

The MK20 Mod 0 is particularly designed with specific features that enhance its suitability for surface supplied diving operations. This model includes aspects such as improved buoyancy characteristics, operational simplicity, and compatibility with various configurations that optimize diving performance and safety. Its design elements cater to the fundamental needs of divers working at the surface, making it an ideal choice for such tasks.

On the other hand, the MK20 Mod 1 may incorporate updates or changes that could lead to differences in functionality compared to the Mod 0. While both models may be used in some diving scenarios, the Mod 0 is often viewed as specifically tailored for surface supplied diving due to its established features that accommodate the operational demands and safety requirements of divers.

Thus, the preference for the Mod 0 in surface supplied diving contexts is attributed to its design focus and proven track record, reinforcing its designation as the more suitable model for these diving operations.