I've had my Ultima rings for a bit over 200 dives now.
I've lubricated the o rings TWICE in that time, once when they were brand new and once again some 50 dives ago.
I have never "cleaned" them either, apart from when I lubricated them.
The only leak I've had in that time was from a punctured thumb in my glove.
I have never heard of a need to grease them every dive day from any of my buddies who use them either.
Good for you. If only we were all so lucky.
I dive in silty green water and **** gets gritty. The process i describe works for me and my conditions. If i don't follow it then i get wet.