My 26″ Five is playful, my FF29 isn’t. I know that, I can feel it, but it’s not so easy to put into words. Partly it is the ease with which you can turn and with which you can lift the front wheel, but it’s not just that. It’s a sort of neutral feeling to the balance. Going down hill on the Five the bike is moving about underneath me quite a bit, but always returning to a neutral position. If I want to change line, push the front into something, or lift it up then it’s easy enough to do. It just feels like it wants to play. The FF29 on the other hand feels very stable and stuck to the trail. I can still get it to move if I want to, but it doesn’t seem as keen.