I ride in Primary, if I know the road ahead isn't claer, I have a better view than the driver and can hear oncoming traffic from round bends, over hills etc. Then i'll move out maybe an extra inch, hold my right arm out with the palm facing them, to warn them to stay back.
If a car has been 'caught' behind me, once I can see the road ahead is clear & safe, then i'll move in slightly - I'll never wave them past though - That has to be their decsission, I think by moving back in, they would realise they can go & use their own discretion - I will give them a thumbs up or a little wave (depending on speed/road surface) as the do pass me though.
Last week driving to pick up my youngest 2 from school, my eldest who is 18 was with me.
I had 2 riders in front of me. The road isn't wide enough for me to safely overtake without crossing the centre lines on this stretch & there was oncoming traffic, so I held back. About 1/4 mile up the road there is a bridge that goes over the railway lines, both riders huffed n puffed up it, I slowed right down & held back about 5 feet behind the 2nd rider, the lead rider was about 3 feet from the top - But obviouksy had a view of the other side, he began to wave me past. I didn't go.. Why would I? I was a good 10 feet from the crest & had no idea of what was approaching. He waved again, I still ignored him.. The car behind beeped, a glance in my mirror showed me a very angry face - I ignored him too!
By now the 2nd cyclist was near the top, he bagen to wave me too, I'm still not overtaking FFS!
The 2 riders dispapeared over the brow - on reaching the top myslef I saw another cyclist coming up the other side & a LandRover (farmers green type one) flying up the hill overtaking it..It drivers side wheels over the centre line...I didn't have time to recat or pull in a few inches and he clipped my wing mirror.. Yep, kinda glad I didn't pass when the riders waved me on or the angry driver behind was beeping & gesticulating!
My eldest actualy covered his eyes, as the LR came at us... He was still speechless when we arrived at school...and this from a lad who throws himself out of planes for fun!!