I apologize for seeming slightly sensational and misleading people, but if you do check my logs, it's actually more like a 15% increase than 20%, though it did jump from 40-something to 60%.

Though it should be kept in mind that:
1) The pieces of gear swapped out were the absolute worst offenders, 875 phantasm tome pieces with 400+ sks and det, compared to crit and dh. That's almost 1000 sks plus 500+ crit and dh. Minor adjustments to other gear also happened.
2) 1% dps increase is 10% parse rating. Parse is highly competitive and the difference between top and low parses is only around 1000 dps.