I did, too. It's slightly OT, but has anyone tried their remote
oil-filter?

Not theirs, but many years ago I raced a VW kit car and the remote oil
filter I added allowed more oil to be in the system and ceratinly allowed me
to get high power for longer before the oil temperature would climb.

Maybe having it in a remote location with some air flow allowed a better
cooling, and maybe the increased oil capacity helped by allowing for a
slower overall climb in temperature. It certainly helped to maintain a more
stable temperature with the short periods of full power that I subjected it
to in motorkana events.

An aircraft is normally only subjected to full power for take off and go
round, and many manufacturers quote full power rating for one minute or
similar times.

Hope this helps,
Peter