Hi! I have a Baby Bjorn sling. I overheard someone at an nct meet when I was pregnant saying you can put a pashmina in the bottom of it to get baby's hips in a better position and legs froggy style. Has anyone heard this or even tried this?! I have a Wilkinet but it's just taking toooo long to put on and now baby is over 8lb if like to give it a go