Iame KA 100 Roller Bearings

Has anyone got any thoughts on whether it’s worth changing the main bearings from c4 ball bearings to the new Roller bearings that are available now for the KA 100.
Would there be a performance gain with the Roller bearings on the KA 100.

They are about twice the price of the original bearings, I don’t think there is much of a performance gain, there may be a longevity gain ( if they are well maintained).
I wouldn’t be changing them unless the bottom end needed doing anyway, and you had the spare cash.

Some guys seem to think the latest X30 goes better because they have the roller bearings so I thought maybe there might be people that have tried the Ka100 with them.
Does the brand new KA100 come with the roller bearings now standard out of the box?