I can saw from my experiences so far that it seems to depend on the dog.I'm guessing there will be certain breed's that most likely wouldn't make a good match but so far from dog's I've met in the park it always depends!
What is predatory drift?I dog sit a Patterdale terrier(Alabama) and her and Coco play well,Coco likes rough play and doesn't seem scared and Alabama plays differently with her then other dogs we meet in the park.However I do notice sometimes she enjoys a bit of "stalking" (If that's the right word?) Today I was watching them play,Coco had taken a toy from Alabama and was on floor chewing it,Alabama was watching her from the bed,she was in the down position and watching Coco very intensely,she then slowly rose up and JUMPED (nearly a meter) right onto Coco,well she would have if I hadn't put my arm out and blocked her.I was like...WTF? Seems something kicked in....I don't know if its because her dad hunts squirrels and Coco is too small,but its something I have to watch.