I think increasing CE hours from 6 to 8 hours would add to the learning experience..  There is no harm in a little extra time for furthering your education. If adding 2 more hours means more time for learning new information or refreshing on information one already knows then why not! It can't hurt, it can only help! There is always room for improvement and by not increasing the hours you wouldn't be supporting that kind of positive attitude one should always have!