No arguing with the pretty!
http://www.gotaukulele.com/2017/10/kala-elite-3koa-tg-tenor-ukulele-review.html
http://www.gotaukulele.com/2017/10/kala-elite-3koa-tg-tenor-ukulele-review.html
If it's a permanent change from kala (I believe they WERE 38mm)... then it's a very silly decision.. Somebody else told me they are offering both widths.
If that is true then
a) they need to make that clearer on their site and,
b) Why???