Yes, Andy, I totally agree, the best way to overfeed pigeons is to keep them constantly hungry. They attack the feed like it is the last food they will ever see.

I also think that the wrong feed, and lack of essential nutrients will make them eat and eat, because they are trying to get something they need.
Some might disagree with me, but I think a peas only diet for nest birds is wrong. Wrongydy wrong wrong wrong.

I feed my stock birds the same mix as the race birds and extra peas on the side.

They also get a spoon full of FRESH grit every day. And still, I saw Gordon and Mrs Gordon, and the Good Red Thone' and his mate, out on the side of the street eating dirt and grit and, who knows?
My pigeons are like Andy's. I can pick one up after they have gone to bed. I don't often find one with a crop bulging because they have gorged themselves.
Greetings from the land down under.

Blessed is he who expecteth nothing, for verily, he shall not be disappointed.