anything wrong with this pitching sequence?

[shipwreck]

NCAA softball, although all rulesets are probably the same. Tell me if this is all legal. Pitcher steps on the pitching plate with hands separated. She then brings hands together waiting for the catcher to give her a sign. She then takes the sign from the catcher with her hands together and pitches the ball. A friend of mine says it is all legal since she stepped on with hands separated and at that point she could have been simulating taking the sign. His reasoning made sense altough I am wondering how long she needs to wait before bringing hands together. Dave