Stuart Noble wrote:
Chris Bacon wrote:

PVA and sawdust is a rubbish filler.

But you can understand why people use it. Sawdust should be the same
colour as the wood but, because the density is different, it stands out
like a sore thumb.

Also the timber won't take stain, etc. It's been suggested quite
often here as being good for things like filling gaps between
floorboards. Pah.