Hmm, 2-look Last Layer? I remember when I was using full PLL and 2-look OLL I was getting around 5 seconds on average for OLL alone. I would say that's nearly the same length it took me to do 2-look PLL but I have not done 2-look PLL for over two years now so my memory may be wrong. I would think I averaged a little bit higher, between 10 and, possibly, 20 seconds for 4-look LL when I was accustomed to it.