Thanks Oliver and Steve, for interesting and useful comments.

I’ll have to look into the details of split tail main.  Mine has a rope horse, which I’d have thought similar. Not needing so much MA on the mainsheet sounds useful.

I’m tending towards the centre option,  for Steve’s reason.  They might be swapping between boats and lot at the moment, so I don’t want to cause confusion.  Plenty of time to try stern sheet later.  But they’re all pretty keen and smart enough,  so I’ll talk to them about it.

Thanks.  Don.