Hi,
To quote Richard Harris - "Where there's a doormat there's usually a door".
The Bayeux tapestry is that doormat and it might well be that what we are seeing being hewed with a tee axe are planks and not beams i.e. this axe is being used as a finishing axe rather than a wood removal tool.
Will, you have the experience of using one of these axes - does this make any sense ?
Regards
Ken Hume