I see no real reason not to.
You can check the 2 displays side by side during the dive. If they do not agree, do a loop flush with diluent. Check the reading against the expected ppO2. It is always a good idea to have such a table handy (in addition to bailout tables
) to avoid doing calculations under stress.
If one cell is still off, you then run the loop as SCR or bail out. This is how I dive my unit. I think that Kerry once wrote a very good article on why 3 sensors are overkill in mCCR. Look around his site for it.
GKAM