I've never had any problems with super yeasty strip charge, even with electric elements. Most scotch distilleries pump the whole shebang into to beer stills. Some choose not to. Plenty of my favourites do though. Even for the ones that do leave a chunk of trub behind though, the beer is very cloudy/murky with suspended yeast. The standard time from pitch to filling the beer still is two and a half days. This isn't a stingy, cheap, Scots thing (at least in a contemporary sense). It's just what makes the best spirit for them. If letting things settle out and clarify over a few weeks made the product better for them in any way, at least some of them would be doing it, and none are. There are a few that leave things for up to four days, but that is an exception. I can't imagine that the beers are all that clear at four days.
Good to know the bamboo can handle spent wash. Do you chill it at all before the application? The stuff for me is a potent weedkiller, hot at least. Been meaning to plant some bamboo for future structural purposes. Had a bad experience with some 'standard' bambo years ago at a place I lived at. Spent some time with a chainsaw 3' into the ground digging a trench to remove it. Never got it all. Any pointers on larger diameter, less invasive types?