I just smoked my first bowl using a balsa wood filter. The pipe is a Savinelli Punto Oro 1/8th bent sandblasted poker with an army mount. I've always used the adapter in it until the smoke tonight.
I'll have to do it all again a dozen times or so yet, but my experience was awfully positive. Dry smoke, no need to use a pipe cleaner (as GeoffC predicted), and no damp dottle in the bottom of the bowl at the end. Very nice. I suspect, if the dry ash smoke to the bottom phenomenon repeats itself in further smoking, that the balsa wood filter use will contribute to building up "heel cake" in the bottom of the bowl--very very nice.
I'm not sure I can be definitive at this point, but I thought the taste was a bit woody. Maybe the balsa gives a slight taste as the moist air humidifies and passes around and somewhat through it. I'm not sure of this yet so we'll see what other smokes tell.
It sure was nice though, and fun to have a smoking test project. Certainly worth a half to a full dozen test bowls.
Thanks for the suggestion for sure.