TT Does say 1850 max for the properly glued woodies.
That is why I tell people to shoot for 1750 so that if you get an over speed in a decent or miss the mark while setting up you are not over or pushing red line.
I've seen too many woodies explode trying to run 1850 and getting a little over or have an air pocket in the gluing of the grips.
There are a lot of people (myself included
) that ocasionally run headspeeds way above what they shoud be running.