I did not miss an attendance day and all my evo rings 1 [except one ring] became tradable on 7/13 [11th day]. this means that the rings became grade 11. the exception is the one that i'm upgrading right now and it's still untradeable.
you missed a day and your grade 10 rings are now tradable. could this also mean that even if you missed 2 or more days, all rings that are upgraded on 7/13 will become tradable?
I am not afraid of work. I can stand around and watch people do it all day long without being the least bit frightened.