Yes but in the technique that we're discussing here, you've scooped off a lot anyway. That, and I would also think it would be easy to use a finer screen as there should be much less resistance.
It would be interesting to see whether there was any difference on extraction, more than any fines at the bottom of the cup.
Thanks for the link Sys. Damn my gadget-ways, I'm half tempted out of sheer curiosity Unless Jim has already got one, wouldn't put it past him From some of the comments I've read, it does look as though they had a nice idea, but didn't quite sort out the execution. Pity.