Best cyclocross bike under £1000 and other CX chat

Yes, see your point. A quill to ahead is another example where it is very noticeable.
However, the degree of noticeability must be pretty low when increasing the size of bottom cup alone. Why not go the whole hog and increase the whole steerer as the 1 1/2 steerer/stem interface must benefit by a tiny amount too?

Thats next years improvement. Gotta keep sales rolling.

(it would also mean ditching a massive market of 1 1/8" stems)