I've reduced my price feed by 12%, following the lead of 
- abit: Abit Witness Price Feed Update 2016-10-03
- smooth: Witness price feed update
- someguy123: Someguy123 Witness Feed reduced by 12% (from 10%)
I use the steem_price_feed bash script, which is also used in my how to become a witness guide. The GitHub repository still defaults to 10%. To manually update you need to replace the following:
price=`echo "scale=3; ${price}-${price}*10/100" | bc`
...with...
price=`echo "scale=3; ${price}-${price}*12/100" | bc`
Vote for me to support me as a witness.