I have been working on force fetching my dog since he's bad about dropping birds. Today however we seemed to hit a wall. I've been working on force fetch using a pile of bumpers, and he's been doing alright with the occassional refusal, I then bring him back to heel and reinforce with a collar correction. The actual training sessions seem to be going fine. Whats got me concerned is this afternoon he didn't really want to pick up fun bumpers. Previous to starting FF this dog would retrieve bumpers all day long. I wasn't real confident about getting into a fight about this at this time as this is a very sensitive and soft dog. I have been doing two sessions of FF twice a day with a couple of fun bumpers before and after and this problem just cropped up. I was also throwing a Dokken for him which we haven't used at all for FF. I started FFing with wooden dowels and bar bells and then transitioned to large white knobby dummies. I think the pressure may be getting to him and I might back off for a few days, take him out and throw some fun bumpers and see what happens and then just work on hold with bumpers and birds and try getting him to deliver that way, then use collar corrections for dropping on the way in. Any other ideas or advice would be appreciated. Should I try and pussyfoot around this or turn this into a battle of wills? For a little more background this is a springer spaniel that will be used strictly as a gun dog. All I want to accomplish is a nice delivery and hopefully get the dog steady to flush and steady in general. Any advice?