Let's not forget that Xray is A sort of "The new kid on the block"
Where companies like Tamiya, Corally, Yokomo, HPI and some more have many years (and some even decades) experience.
Xray hasn't, they just stared, and they already are on the top.
If your saying Xray isn't inovative enough and copies things from others, I think you're wrong.
First thing, everyone copies, sometimes they don't even notice it.
It's a part of the business, and not only this... every business.
Second, there aren't many options you can choose from, for example, take A look at all those shafty's, they all look the same, but there just aren't so many layouts you can choose from.
I think Xray stands out from the crowd, it has so easy to tune and work on.
For example, you can adjust the rear toe angle by adding or removing A caster clip.
If you take A look at A 415, Pro 4, CGM and many more, you have to take the hingpin holder and replace it with another one (every degree has it's own holder).
Xray has always done there homework, and (I hope) it won't be different this time