*There* ya go, Ian! Annnnnd this size holds the possibility of fitting with drop handlebars (as I did on my own 590M) should you wish to conduct experiments in that direction.
Many's the time I have appreciated the standover clearance offered by the steeply sloped top tube on this model.
This example even has couplers. You know it is calling you....calling...calling. Time to answer!
All the best,
Dan.