In article ,
Tony Miklos wrote:

Yes I'm not trying to make it perfect, but the light is the
easiest way to see the joints that are really bad. I just don't want it
to look as bad as the last mud job I did!

Your idealism is commendable, but seriously, very few people spend any
time at all looking at the ceiling of a room. You could staple a few dog
turds up there and most people would never see them.