Hi Simon,
I think I have enough motivation to try that. But wow-Yew-now there's a beautiful wood, also very dense. As for PC, I think you're OK. The native Pacific Yew is a little too 'wild' for the urban landscape and no longer needed to make taxol, though it is part of the northern Pacific rainforest. If it's English Yew, I don't think it's an issue (depending where you live). I believe it was the wood used to make the deadly English longbow in days of old-either that or arrow shafts.
Do you make plinths for sale?
Thanks again for the tip.
Best,
George