Hi Claire,
wondered if you'd post about jasper here
Having met jasper I can honestly say he was a pleasure to join us on a walk.
He is a bouncy dog who loves to run (and is too scared to go in the water

)
Claire, you have worked hard for the past 6-7 months to get Jasper where he is today, when we first met you felt he couldn't go off lead as he'd run off - now he recalls well.
I won't go on about how life will get easier with a springer as you've heard it from me numerous times, if you have decided jaser would be better suited in another home then I trust your judgement.
Like I said initially, its always best to rehome via a rescue, this way the potential new home will be home checked and offered back up for life via the rescue.
When I spoke to eddie last night he was all for us taking jasper on - can you imagine two jaspers and a Poppy!! I don't think so!
You know where i am if I can be of any support to you!!
I do think maybe getting the kids more involved in jaspers care might relieve the pressure from you somewhat, maybe they'd like to take jasper to agility classes?
As for the growling, I would suspect that be normal 'teenage' behaviour, but any sudden changes like this should be checked out by a vet just to be sure there are no underlying reasons.
Please shout if I can help - even if its an ear to bend
Kelly
xx