16 axys 163 here with Raptor Kinetic triple rate spring. I also found the stock settings to offer to much sag on the RTS. Original setting was 10.5" length. I adjusted it to 9.5", felt that was to stiff, but it sure sat up high. I have turned it down to 10" and so far I like that and will probably leave it there. It has the quick cam adjustment so if I need to I can turn it up easily in 1/4" increments.
These shocks are the real deal. and ride VERY plush and you can launch the sled and it hasn't bottomed on me yet. (I believe this is due to the internal Bypass and valving correct for my weight. 190lbs with no clothes on) Highest setting I've used is 5 clicks out of 20 on the dampening. I haven't played around with the rebound yet.
FTS is set at 8.5" right now, but I will be setting to 8.0" FTS length to get some more ski lift and playfulness out of it. I am turbo too.
If you haven't rode these to compare the difference, I highly suggest you do. I had stock walker clicker 1/2" style, so non needles and they are WAY better than those.
Also, I can say they are a better riding shock than the needle walker clickers on my 15 SBA.
Sorry for typing a book, shock talk excites me.