TheThaiger
Banned
If you find a Steve Davis instructional guide, it might show either stance, depending when it was produced. This is because he started off with the classic 45 degree version (and won a few world championships using it) before switching to the 'modern' square-on stance.
In fact, the difference between the 2 stances is sometimes less than it might at first glance appear. It is quite possible for the feet to be at right angles to the shot but with the left knee (for a right hander) twisted inwards, so that from the knees upwards it is essentially a 45 degree stance.
They are interchangeable, and I alternate without even thinking.