When I set my clock alarm to go to work at 8am, I usually do not wake up at 6am ...The other poster made the statement that dive insurance may be invalidated if a computer is set to something higher than 1.4.
1.6 falls into that range.
I have never argued with an insurance company. Not understanding why that's relevant either.
For this reason I always set my PP02 to 1,4 (bottom gas) and 1,6 (deco). The only exception would be if I had to do my deco with pure 02 : to avoid my computer changing colour to red at 6m, I would set my deco PP02 on 1,61 and my dive insurance would be OK with that. Anyway here in Indonesia pure 02 is never 100% so I never face this problem