Thanks to Euro Health & Safety zealots you can no longer stop a mower
without engine shutting off, when your hand comes off "dead man's
handle".

This means every time you need to change grass box, you have to
restart engine afterwards, each time.
Older models, would just disengage propulsion and stop blade spinning,
but keep engine on tick over.

This is a pain, but I believe some high end Motor Mowers (Honda) have
fix; however I've got this new McCulloch now.
Anyone any suggestions as to how to get round this annoyance that I
assume is on a lot of modern motor mowers?

One possibility I suppose is to fabricate some sort of crade to lift
front end of mower (as it's front wheel propelled) and place front end
of mower in that, so during grass box change, the front end is
elevated, and front wheels will keep turning, but go nowhere, but
blade of course is still rotating.

Thanks