Tellurider, thanks for your detailed reply. You've given me some good ideas for how to start my dog on the 'backpack' project. Of course I will get him used to it while I am just walking and when he is really comfortable with the pack I'll get the uni happening.
And if all else fails, I could go the trailer route! Thanks for that suggestion Gild. Though I do think the backpack would be simplier and perhaps a little less tricky to keep things going in the right direction.
