Although it's quite expensive, the Corvette SKF race bearings that I, Patterson, and White and are using are working quite well. I could never get a yes or no from the CMC directors as to whether they are legal in CMC.

The SKF vette hubs require an adapter, which I designed to fit the f-body spindle.
With the adapter, they are dimensionally equal to a factory hub, so there aren't any track width changes. They weigh 1.5# more than a Timken.
Any factory brake, or aftermarket kit that works with the factory spindle/hub will bolt on without issue. Once the adapter and race hub are assembled, it acts just like a factory hub. Owner can swap between the two on a race weekend just the same as any replacement hub. The blainefab spindle ducts do not fit, but I have 5 sets of plates cut to fit my hubs.
We have found the bearings to be very tight, and to have eliminated the pad knockback in the front. Mike and I have run them since NOLA, and they still feel as tight as they were when they were new.

I'm sorry that doesn't really help you at this point, but maybe you can throw Al some messages and get a ruling. I have 2 pairs of adapters in-stock, and I'm a Phadt dealer for acquiring the SKF hubs.