Well, considering this is my favorite disc, I'll share my delight. The Stalker is a faster Buzzz with slight fade at the end with little skip. Compared to Innova it would be similiar to a slower beat in Teebird with less fade but with a beefier rim. The disc is very forgiving as I am typically a strong-armed thrower. Thrown on an hyzer with max velocity it will hold the hyzer line and slowly fade skipping 5-15ft (depending on surface) from its landing point. On a flat release it will stay straight and come to a gentle rest. I use it mainly for 300-325ft drives or approach shots 150-300ft. My favorite shot with this disc is low flat shots 250-300ft aiming just about 5-10ft to the outside of the basket. Last week I just aced it on my home course on a hole that I've been trying to ace for four years.
Thrown into a headwind flat it can turn with little glide. On a hyzer into a headwind it will hold the hyzer line and carry straight out further. My interchangable disc would be an Elite Z-Buzzz. On a low ceiling tunnel shot the Buzzz will fly straight but I need to soften up my arm speed so I don't torque it over, however sometimes a Buzzz has a tendency to rise. If I throw the Stalker, I do have to put additional arm speed behind it to keep on a straight line, but it seldomly rises in no condition winds. Too much torque, again it will slightly turn. Too less arm speed it will fade out quicker. At the end of the flight where a buzz will hit and stay flat, the Stalker will have a little more fade and end about 5-15ft from its landing. I don't throw this disc for anhyzers so I have no input there, that's where I use my Buzzz or even a Squall. Hope that all helps.
My Discraft Fairway/Midrange disc selection
Drone - overstable short-midrange shots
Wasp - stable short-midrange shots
Stalker - stable long range drives/approach shots
Buzzz - straight drives/approach shots
Squall - understable drives/approach shots