yea if you had like 10 din rossis that may explain it, but appropriate rossi bindings shouldn't have had an issue do you know what the max din was on them?
https://www.newschoolers.com/web/forums/readthread/thread_id/253541/
even the 12 din ones on those should be enough for you for a park ski, with your din at like 8 or 9, otherwise look for a 14 din bindings, I'm 175 lbs and have rossi power 140s