working on ff with a 2 yr old golden male. All through obedience my sd400 was plenty hot for him, up until now. On the ff table he is as stubborn and tough as they come. Ear pinch nas zero effect. Considering toe pinch but have never done it and not sure how it would transfer over to ff on the ground. Borrowed a stubborn version of my sport dog collar but he still just twitches his neck. I can tell its gettin him just not enough apparently. any ideas?