Has anyone installed a rain chain?

I am plotting to put in a rain chain so that I can water a climbing rose from a shed gutter. Has anyone here installed one? I'm wondering the best way to go about it re the gutter, without wetting up the (wooden) cladding.
The chain would run from the full length of gutter to earth. The eaves are not very deep. I imagine there is an optimum size of cups and distances etc. I'm not committed to cups, but this iron one is pretty. I'd rather not buy one and then realise it won't work well because the physics are off. I could add a down pipe on the front of the shed, but it would not be much lovely. [I have a water butt that fills from the gutter on the other side of the shed. That hose stays open and feeds my thirsty espal. apple tree.]
I'm thinking that a smaller hole in the gutter would make for more limited water flow and so less splashing about. Video here for more detail on rain chains.

Any thoughts?
Thanks
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