Hood 'Oil canning' problem.

[Billhilly]

Well not technically oil canning. That apparently implies a raised area, and a lower area.
The whole hood skin feels very thin. When you push down between the edge of the hood and one of the braces it wobbles down, and bulges up between the brace and the centre rib. The hood is up at my panel guys shop, and he's not overly happy about it. I took up the new hood brace pads and put them in yesterday to see if it would help, but it just raised the area where the braces are, but didn't help the 'wobble' at all.
So is this normal? I can't just shoot down the road and see the neighbour boys one down here!
I have searched on here but didn't find anything specific, but did see a couple of comments about how thin these hoods are.
My hood had just a tiny bit of rust on the leading edge, and a couple of pinholes above the battery area. And a couple of area's of surface rust, kinda weird, but like it had rusted under the paint. I have had it sandblasted, but the general feeling is that hasn't caused/affected the hood at all.
Appreciate your thoughts on this matter! I won't tell you how rare/expensive another second hand hood is down here. With the money already tied up in this one I really need to make it work.