I have two questions.
At what point (how many regular deep parallel bar dips you can do in a set?) should you transition to Bulgarian dip movements? Some have said 8 reps.
How comparable are Bulgarian dips on a set of a wide posts, or using wood railing that meets at a 90 degree angle, and adjusting for natural width? It is definitely harder than regular dips. I don't have rings (no place to hang them), so this is the best I can do for, now.