Regards Quick Drains:  My experience is on a Lancair IV, not a Legacy so it may not be relevant, BUT:  Please be careful to do a retract test for clearance AND put some telltail indicator on the drain to verify clearance in flight.  I have used two of the drains pictured here along with about every other low profile drain available--3 others--and have also adjusted the nose gear to retract as little as possible--at the very bottom of the tunnel so the doors just touch the tire when closed--and after all that I get some scuffing on the brass cap in flight.  I double check this by putting duct tape on the cap and sure enough when I land there is indication of interference with the rounded portion of the drag strut--even after I verified clearance during a ground retract test.  So I am again back to the Slow, Messy Drain Plug until someone invents an even lower profile design.

Oh a neat trick--put a vacuum cleaner hose in the oil fill tube and wrap a rag around it to form a loose seal and then when you want to change oil drain plugs but not the oil just turn on the vacuum and sure enough the oil will not leak out of the open hole when you make the switch.  Of course you do not want to defy gravity forever, but if you are organized and quick you will not spill a drop--honest!

paul, N94PT