Hehe yes indeed.
But still, there are some that are in FSX SP2 native format, which means they don't have any prop display issues

I'm specifically thinking about:
- the DR1 you've been using, of course
- the FSX convertion of the Camel originaly made by David Eckert
- the Bristol F2b by Robert Bruce
- the Alphasim (now freeware) SE5a
- the Swordfish from Flying Stations
And there might be more that I didn't know about or forgot
