nothing to it - you just have to careful.
On the M97xE, just lower the brush assembly on the stock stylus until it locks in place right below the stylus and cantilever. It will act as a sort of "stylus guard" at this point. Don't force it, you'll feel it stop in the right place.
Grasp the stylus assembly by gently "pinching" with your thumb and forefinger the small metal bolts holding the brush assembly on and gently pull forward. The whole stylus assembly will come out of the cartridge body.
Set the stock stylus aside and CAREFULLY remove the SAS stylus from the boneheaded packaging Jico uses. They ship the SAS stylus with the brush assembly / stylus guard in the "up" position - I guess they didn't want to have to make special packaging for just this stylus.)
Gently insert the male end of the stylus into the female socket of the cartridge body (yeah, baby, that's it...) Don't force it, it should slide right in and firmly hold in place once completely inserted. Do make sure it's fully seated.
Adjust your VTF to 1.25g (+/- .25g), I use 1.35g. It will require a bit of VTF tweaking due to the stock stylus being a tad heavier and I'd double check the alignment just to be safe.
That's it!