Oh yes. This kind of articles is my sustenance. Thanks for posting!
I kind of hate Polyfiber though. It’s frustratingly water-repellent, and therefore PVA-repellent. Also a bit flimsy when teased out thin enough to look believable as a haze of small branches. If I could reinforce it with a diluted PVA wash I’d be mainlining the stuff in my terrain-building projects, but that’s where the water-repellent problem comes in. In any case, you’ve worked wonders with it!
I like those tree armatures as well. Were they sold by Chinese online vendors, or are they part of the product range of some model railroad terrain company I don’t know about?