Yeah whenever my C3 doesn't restart after a PWC
I know it's due for a cleaning, usually every 2-3 months. It is noisy at first, but after a day or two it's quiet again.
I've tried using vaseline before, and it ended up at the bottom of the motor in a greasy clump. It smelled bad, and was a pain to clean up. I probably put too much vaseline on (I did it when the filter was new and sounded like a sewing machine), so it was my fault. I've heard of many people using the vaseline trick without issue.
I just wait for the slime to lube it. Once the filter has been running for awhile it doesn't take long to quiet back down.