Cheers guys, I got the QHY8 -> Reducer adapter made up, and it looks to be right. It should fit the little starlight camera as well, in a pinch. Yes the 3amp fuse was for the pool filter, it's all I could find when I realised I needed one. I also need to replace the DC feed cable to the mount with a thicker one to cut the voltage drop I'm getting. Doesn't look promising for another go tonight but there's aways Ron's place on the week-end