Interesting while I understand the need to keep the GWP busy the ones I have known / hunted with have never had those issues. Is it possible they are from the breeder? I've seen some great ones & if they werent' so ugly would probably have one, will stick to Weims for now, but they just aren't as tough when it comes to the bitter cold.
There are a few GWP's owners that occasionaly have litters in & around Anch / valley area that I know of if you want a couple names.