Basis Super Arm 9

I do not believe there will be an improvement in sonic performance worth the price. 

But you have never heard it, you cannot know this.
Most who have upgraded from the Vector say the arm is a substantial upgrade, including experienced reviewers.

You make many assumptions based on a small set of design parameters, but ignore many such as bearing quality, stiffness, ability to deal with energy from the cartridge, build quality to name a few.

More importantly you appear to make sweeping conclusions without having heard the product. Assessing the design parameters of an audio product is fine, but drawing definitive conclusions without any experience of the product is unfair in my view to any product.

Not only is it not worth the cost but the Schroder CB is a better arm at a much better price.

So what turntable and cartridge was used when you heard a comparision of the Schroeder CB and the Basis Superarm.
What differences did you hear.