no seen it opposite way round softmouth turn hard mouth.dogs which were tired at the end of a nite start to kill the rabbits instead of bringing a struggling rabbit to hand. seen live to hand reteivers on rabbits turn hardmouthed on hares.seen dogs that were naturaly hard mouthed and stayed that way all there lives.its a first for me to hear of hardmouthed turning softmouthed.but if its soft mouthed on rabbits now surely thats a bonus.