Varmint hunting is what mine is used for. I agree a pivoting seat is much more useful, but I can still shoot pretty good in all positions with this setup too.

This is ridiculously awesome.

They look great, Are they top heavy?

That 6x6 looks scary. With two big-o-boys up there I think I would be very cautious.
Ours has the regular rack on the bed, so far it feels pretty safe.
A lease member's son dumped one with two kids up top. A concussion and some broken bones made everyone be much more careful. They should have never let them kids run around like that. I am glad I wasn't there that weekend.