Different carriers shouldn't make much of a difference- it depends on where you tie/buckle the carrier. High back carries are actually near impossible in ssc's.
YouTube "Mei tai high back carry" - you'll probably tie the bottom strap above your bust.
The time has come, my online friends, to talk of many things:
Of flats, and wool, and all in ones - of breastfeeding and slings-
And why our bed is cramped at night,
and the joy my children bring!