RE: I was wrong about disliking Maya Wrap Slings...
I am broad shouldered, 5'8" and at the "upper end" of the weight catergory for my height ;) Maybe you tried on a Maya that was too big for you? Maybe you didn't start with the rings high enough up, and if you pull on the tail downwards it will pull the rings down too. There is a part in the video that I found very helpful, showing how to move all the slack fabric towards the rings, then tighten it without the rings moving too much. That really helped me. Good Luck!
Mama to "The Fantastic Four":
DS 02
DD 06
DS 09
DD 12