Hey tunafish, great work. I love the shaky painful straining wobble he does as he walks because it's so expressive, but I agree with souly, it's so novel you'll tire of it quickly and it becomes excessive. I think souly "fixed" it. Maybe you can just slow him down some.
Overall, the old animation just looks like he's being cautious, and the new one acheives your goal of him being under strain/weight.