[OZVENOM]

Hey Mike i would not be worried about the strength of your hubs they will be fine you have done the right thing with radii on the corners and there is no point in heat treating them the alloy is as strong as it will ever get. I went through the same thing with caliper mounts 6 years ago. But anodising them will will make them stronger and give good corrosion resistance.
If you made the flange 10 mm thick then maybe fatigue could be a problem . fatigue is a result of flex and stress like aircraft wings that are made from very hard thin alloy which cracks and fatigues. molly suffers from the same thing in air craft they use tube that is only 35 thou thick very light and strong but prone to fatigue.

so you coming to the nats??