Jock, I am with you on this. When I wear a jacket with the kilt it is usually some sort of "event", whether casual or daytime formal. I almost always wear a military tie on these occasions. I was commissioned at the Royal Military Academy Sandhurst into the Territorial Army, so my favourite tie is Sandhurst, although I do wear the Royal Army Ordnance Corps tie on lesser occasions.

I think a military tie really sets off a kilt in a formal setting.