Hello! So excited to be part of this group. My learner is long, large (105lbs) and top heavy (his head and paws are huge). We want to get the fluent pet buttons, but they are smaller and we are wondering how sturdy they are are compared to the Learning Resource ones. He broke his favorite one early on (button mashing it), now others are breaking with normal use. Is anyone using them with a large dog (big paws)? If so, what has your experience been? Many thanks! T-Rex's mom.