Why do you wear a computer to free-dive? The purpose of the computer is to calculate nitrogen absorption which isn't needed with free-diving.
For those who mix scuba with free diving, it is probably preferable to wear the computer to accurately keep track of N2 loading. After all, a free diver may be increasing N2 loading during his dives. Aat a minimum, he changes the rate of off-gassing.
It seems to me that this residual N2 reset is more for a computer that is being cleared as it is passed on to another diver, like a rental computer. I doubt if it is meant for the purposed the OP intends. As soon as you go into the dive mode, N2 begins loading and No-fly and desaturation algorithms may be activated. You probably should trust your computer on this one.
From your manual:SET DATA - DELETE TISSUE
 WARNING
This option is intended only for highly
experienced divers. Users who clear the
residual nitrogen memory cannot use the
instrument for repetitive dives. After this
operation, do not dive with PUCK if you
have already dived within the previous
24 hours.
---------- Post added August 19th, 2014 at 01:53 PM ----------
Yes, in the context that the computer assumed you were breathing compressed air and ongassing nitrogen - which you weren't (shouldn't have been) as a free diver.
How do you figure that????
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