Hi I`m in the process of learning padi open water, i`m trying to get my head around the dive tables, cracked it once, but last week was the first time i had been able to resume my course (as my job includes lots of weekends) so needless to say hadnt made it for about 10 weeks. Boy I had missed it but it was almost like I had never almost finished the course, it seemed that somethings were easier to remember than others , and Im still struggling with the full mask clearing, any one got any tips?