The company I dealt with were fine with it and encouraging. (jessifearon.com)
You state to feed them 1 cup a day which is fine for my bigger dog but how much would you feed small dogs? (k9instinct.com)
He invites tackles onto himself, which is fine if there aren't other options but usually he could just distribute the ball instead, avoid the tackle, and keep the play moving. (justarsenal.com)