So i was looking the whole situation over tonight. I think guard placement is part of the issue. Left side is definetly wearing worse than the right, and it is bolted to the a-arm a little frothy down (1/8") but with the angle looks like its making a fairly big difference.
I checked the springs:
loaded they measure 14 1/8"
Unloaded they're 14 1/2"
It doesn't appear that the a arms go beyond horizontal, but they come pretty close. I gotta get some people/weight to really see what's going on.
On another note i was into the dealer today, and he pretty much told me that hey have never seen or heard of anything like this happening. Said it's impossible. He hoped on a new 500 and i noticed that it hardly moved. Mine i can shift my weight to move the body enough to clear the frame of the shed door if I'm a bit too close.
It seems like springs to me, even though the preload seems to handle the dead weight of the machine just fine. (Any thoughts on that comment in paticulairly).
The other thing I'm wondering has anyone tried the runber or steel spring stiffner that tou add to the coil? Might be a cheap way to it out before i go on the hunt for springs.
Ps, thanks for everyone's help on this it's much appreciated. Hope i can return the favor on of these days.