Hey all. I did the slipper clutch upgrade on my 2015 FJ09, and did the cable update too. Excellent upgrade- it really transformed the bike. It shifts soooooo smooth now, even if I don't nail the rev matching, and it's much less of a pain in traffic, too. I also recommend using the Rotella T6 oil- very smooth shifter action. The existing tutorials all left something to be desired so I made my own. I hope someone finds this helpful....
https://www.youtube.com/watch?v=9j2SOPSb2b8&feature=youtu.be