RE: Little Screamer and E-flite brushless ESC
Erik-
Just run it without a prop long enough to see if the noise is present. The idea is to find out if the noise is due to a defect in the motor or due to a prop issue.
Get a GWS 8x4 prop as well. That no-name black prop may be losing its shape at high RPM, and you might find that a higher quality prop will actually draw less current. Not that GWS props are the pinnacle of propellor design.
At any rate, props are cheap, so it's well worth it to experiment a little.
- Jeff