Thanks for the info that ABS being difficult to use. I'll persist just for a bit longer with the ABS.

It seemed to stick all right on the bare Kapton when I increased the Flow to 110% and reduced the Speed to 75% but will try 100% Speed and 110% Flow.

I just put some diluted PVA on the Kapton and it is a bit sticky so hopefully it will be good.

The head really needed cleaning out but it is a bit late tonight to get started so will try tomorrow night.