Safety stop when DECO?

With regars to the differences between a planned de o dive (runtimes, stops, gas planning), I holly agree with nradov. IANTD does not have you "add" a safety stop to your dive plan. You finish your deco obligation, then ascend. 

No deco courses I'm aware of, OC or CCR, teach adding safety stops tonthe end of a planned deco dive. 

That said, for those who accidentally stray into deco while recreational diving using a Garmin Mk2i, can set your computer to have you first eliminate your deco obligation and then receive a safety stop prompt when you reach 5m. For example, if you go into deco while at 35m (3m) you've probably observed that while making a gradual ascent, like 1.5m/ minute, that by the time you reach 10m, it's likely your deco obligation will have been completed. Thereafter, when you reach 6m, you'll see the 5m safety stop prompt which begins the 3 minute countdown while hold depth at 5m. After 3 minutes, computer notifies you that you've completed your set safety stop.

Under dive settings, set Safety Stop to 3 minutes, then set Last Deco Stop to 3m. 

The above is not advice is not a substitute for deco training. Diving beyond ones training can lead to injury or death. That said, the Mk2i functions exactly as intended by the diver's settings and training.

Cheers