When a full grown plant pops out of whatever is hiding it a good way to make it less tall by tying it at an angle. Has no effect on your yield. Instead of a tree you have a hedge. A plant can be trained to grow in just about any space given. If you are willing to take the time to train it and don't pull it over too fast (little at a time) it can be easily done.

If you have a wide shallow area you can plant the pot at an angle and get a head start on your tilt.

Doesn't make and difference, any strain can be angled.