This is my print with the higher film speed, so it's more of a frozen image than a blur.
For the 1st test strip I tried it at the same settings as the last print I did.
Aperture: 5.6
Filter:2
Time:32


These were a bit gray, so I tried a test strip with different filters.
Aperture: 5.6 Filter: 3/4 Time: 30

Then my enlarger broke, so I tried the same thing after it was fixed.
Aperture: 5.6
Filter: 3/4
Time: 30
I decided on a 3 filter, and needed to lower the time as well.
Aperture: 5.6
Filter: 3
Time: 20 + 1...
This was too light, so I did another test strip with the same settings but more time.
Aperture: 5.6
Filter:3
Time: 25 + 5...
Then I tried an A4 print at 50 seconds with the same settings.
Aperture: 5.6
Filter: 3
Time: 50
After a couple more test strips and switching enlargers, I ended up with a better quality print, although still a bit dark..
Aperture: 8
Filter: 3
Time: 50