@CharleyBird, that's sort-of what I realised but it was too late to remove more than the most embarassing bits
@Binocollector, that's just the sort-of thing which prompted me to come out again!
I reckon 'cheap' can be pretty good too, while the top brands could not really be 10x or even 20x better. As everyone says you need to try them out but in the sticks it's hard to find more than a small sample to try out locally.
My last three excursions were to the same, only, local shop where I was first able to try a couple of more modern Zeiss and Swarovski examples against an older Nikon EDG and was not convinced, apart from equal ease with greater fov. I liked one of the available Leicas too, a s/h Trinovid 8x32 BA but, unsurprisingly, focus was a bit creaky after all those years. I asked for a Leica Ultravid Plus to try and made an appointment the following week for that.
They were to phone me if it was not ready but as it turned out they forgot to do it. Anyway I had decided to look at Noctivid too, so asked for that to be got in for the next week again. In the event I was almost ready to swap for the EDG for a change, so it was annoying to find that the slightly stiff/new focus actually had several degrees of free play, which was not immediately obvious.
Out of frustration while waiting I had ordered a Fujifilm KF 8x32 for only £126 through eBay and it turned out even better than remembered, focus being super light and precise. Very sharp and decent fov which did not fall off noticeably towards the edge, which had seemed a little less benign in the clones remembered, so that's the best of them so far. I must have returned quite a few different new examples ordered at a distance and at all prices because of problems with free play in the focus mechanism. Maybe that is not a general obsession but to me it seems quite important, along with resolution/sharpness...
Based on the Fujifilm triumph I next got a Fuji KF 10x42, supposedly as a nice complement to the 8x32, which was very neat and much the same physical size but of different design. Still 'made in Philippines' but without the sharpness and generally charming view. Disappointing but not so much as two examples of otherwise gorgeous Meopta Meostar12x50 which both had probs with focus free play, but at 10x the price!