Heres two great websites indicating why carriers like the freestyke and similar arent going to be the most comfortable for you, not only because they are less adjustable, so wont fit you as well as a babyhawk or similar.
https://www.continuum-concept.org/reading/spinalStress.html
https://journals.lww.com/acsm-msse/...=2006&issue=05001&article=02013&type=fulltext
Im sure some people find them ideal but in my experience there are some infinately more comfortable carriers out there !