My take on it:
Filter prior to bottling, but wait til it's clear anyway to do so. Then wait another 1-2 months to bottle, if you can. Like PWP/DBF, I have noticed some dusting at the bottom of some bottles, even after I have filtered.
The key is to filter a seemingly clear wine. In other words, if you think it's clear enough to bottle, filter it. Then wait as long as your patience allows, and then either filter it again (if you notice dusting or sediment), or bottle it. I try to filter, and then wait a month or two before bottling so I am pretty sure that it's clear.
Hope this helps,
M.