What is the correct way to typeset an abbreviation in ConTeXt?  The space after the full stop seems too big and if I use \thinspace, I cannot use ties.

No command – space is too big

\starttext

Mr. John Doe

\stoptext

With tie – space is too big

\starttext

Mr.~John Doe

\stoptext

With \thinspace – looks right except at an end of line

\starttext

Mr.\thinspace John Doe

\stoptext

Any suggestions are welcome!

Thanks,

Clyde