I have also found that when I use the 16K, followed by my normal 0.5 and 0.25 diamond pastes, that touch ups went from, at most, 7 days to well over 2 weeks. I used pastes exclusively coming off an DMT8EE. I love the 16K and it was a new level of honing. Pastes seem to roll the edge ever so slightly and using a stone to eliminate just one step (the 1.0 paste) has really made a dramatic difference. One of these days the 30K will come my way.

Later,
Richard