If I went that way I assumed it would have to be unrouted, but hadn't figured on the neck pocket being wider - which should have been obvious. Thanks for mentioning that.

As for neck dive, I assume that happens with a weight imbalance between the head stock and the body of the instrument, exacerbated by the length of the neck adding leverage. I reckon a much shorter neck would actually reduce the likelihood of neck dive. However I suppose with the strap button's role as a pivot point changing in this context, it would take careful consideration.