June 6, 2013 made 1 year since my last trim, which was 1/2" to remove residual SSK's after a virgin relaxer application. I'm going another year. Found 1 split and 3-4 leftover knots from when I was natural in the last year upon very close examination of my ends. I snipped them off. Will not s&d again until next April (2014). My last s&d was in April when I found that one split. Before that, it was Nov. 2012 when I found the knots. Not trimming has become easy for me now.