Which action is NOT advised when one is diving with enriched air?

Relying solely on feeling for depth control is not advised when diving with enriched air. Depth control is a critical aspect of safe diving practices, regardless of the breathing gas used. Divers must use their depth gauges or dive computers to monitor their actual depth accurately. This ensures adherence to dive plans and safety protocols, especially when using enriched air, which often has specific depth limits to mitigate the risks of oxygen toxicity and other potential depth-related issues.

In contrast, making safety stops, staying within the computer's limits, and using individual computers for different blends are all recommended practices when diving with enriched air. These actions help manage nitrogen absorption and prevent decompression sickness, enhancing overall dive safety and allowing for extended bottom times.