I'm sure you're right old chap. Problem was my chain oiler was the basic Tutoro one. (Top up, turn on, ride off....forget to turn off frequently, top up even more frequently, FAFF lots...)
So it just wouldn't maintain a steady and useable flow. I might stretch to a proper scottoiler in the future. But for now it's chain wax and cleaning! Hopefully the next bike will be shaft drive! My knees are getting too old for chain oiling!!