Originally Posted by NovaBandit
I don't have any oil-canning.
I believe that the amount this is off may be variable based on how the builder made the bend in the front fuse side skin.
... And probably also the twist in the channel. Now that I think about it, the pressure I have to apply to get the floor clecos installed is probably not removing an outboard "bow" in the channel, but rather twisting the channel to where it needs to be. If the bend in the skin wasn't exactly right, this, I think, will also contribute to the same twisting problem.
I wonder for future builders if it would be better to rivet the skins to the structure while the floors are clecoed in place (aside from the lower rivets which are covered by the floor). If I had done it that way, I'll bet I would have no oil-canning.