After starting mulabandha, when do you start sambhavi? Does it depend on how long it takes you to be comfortable incorporating mulabandha with SB before you take sambhavi on??
As with any other practices, you add sambhavi when you are stable with mulabandha. So if sitting in mulabandha feels easy and you don't feel overloaded, add sambhavi.
I feel Sambhavi completes mulabandha, and it is very hard for me to do one without doing the other. It feels like one continuous mudra... something like dancing... the hand and feet move together. However, when you are learning a new dance step, you first learn the feet movements, then once you are comfortable with that, add the hand movements to go with the feet movement. If you add both at the same time, it gets confusing.