I would like to see that directional screen run all the way to the front counter weight on the crank to help peel the rotating oil cloud off of the rods and crank
The crank scraper is worth some power, usually above 6000 RPM. The screen is probably worth some power above 3000 RPM also, but hard to measure unless you did a A,B,A test on the same day within 3 or 4 Hrs. of each test
A vacuum pump or dry sump oil system would be the best power gain affecting the crankcase
If money allowed on the dry sump system I would have one now instead of only the vacuum pump