The reason you saw front spindles AND front hubs in the oven is because we make our front hubs identical (well, almost) to our rear hubs. The diameter of our "spindle" is 1.773 inches. The diameter of an original spindle is 1.250 inches. Stiffness goes up with the square (did I remember that right??? I think it may even be a cube or even 4th power function) of the diameter of the bar. Anyway, it goes up VERY FAST as you increase diameter.
We do not use a "front spindle/axle" that a hub rotates on. Our hub has a spindle directly machined on it that rotates with the hub all in 1 piece. It is much, much stiffer that way. This is how a rear suspension rotates. That is why we had both front hubs (ours) and front axles (original) in the oven at the same time.
The small spindles you saw in the oven are original spindles we made for this original car we are working on. We just made a few extras while we were set up and making them.
Here is a picture of an original spindle (the ugly, crappy looking one on the bottom) and our beautiful spindle on top--perfect in every way, shape and form.
That is, until someone comes up with something better, probably tomorrow.