Reading Rovers thread "Finding the correct horse stance" got me thinking about the correctness of other stances.

Since the horse stance has already been addressed I'm curious to other stances not covered.

I would like to get everyones thoughts on the following stances.

Forward and reverse bo:

lead leg bent at 90 degree with knee not quite over the big toe, with the back leg straight and the back foot flat on the ground.
reverse bo is done... in reverse back leg is at 90 ect.

twisted stance:

front leg at 90, back leg 90 with the knee touching the calve of the front leg

monkey stance:

front leg 90 back leg 90 with knee 6 inched from ground

cat:

don't really know how to explain with out pictures, but back leg slightly bent (35 degrees? (sp?)) with weight on back leg front leg is also bent with the heal riased and toe barley touching ground in a ready posture for a front snap kick.

Thoughts?