Small Upper ball joint adaptors

So I am considering using the upper ball joint adaptors to disc brake swap a 63 valiant for street use.

The adaptors that allow you to use the original smaller ball joints with the disc brake knuckles which typically use a larger ball joint.

What are your thoughts, are the adaptors a good idea, are they reliable?

has anyone used them successfully. The large ball joint upper control arms seem to be getting scarce and if the adaptors work, then it is an inexpensive convivence.
I got a set of big joint uppers off my 73 that you can have if you want.