Personally it depends, as always!
Are you running early and sitting outside a station?
Have you been running on yellows following something for a while?
Is this perhaps a delayed approach controlled signal and it’s therefore always red when you get there?
Can you see a train trundling over the junction ahead conflicting with you?
For any of these I roll my eyes when I get a SG ping as soon as the train gets to the red, but it’s not like it ruins my day. I just acknowledge with a ‘Wait’ and get on with my signalling.
Stopping at a red at an unusual place, or maybe you’re at a station and you’re due away, absolutely send it straight away - I might need to talk to you or I might have forgotten you!
What annoys me most is when I get an SG and I’m already in the process of clearing the signal, so the driver now thinks I only did it because of them
