Meowy Catkin
Meow!
I really was hoping it wouldn't need to be dug out as it really messed the hoof up before and horse had been shoeless and sound for years. It seemed to me that digging it out really affected the feet long term.
This is exactly what I found.
Left alone to pop at the coronet = 24 hours to three days from noticing problem to it popping and horse is totally sound once it's popped.
Letting the Vet dig at it = weeks of trouble and pain for the poor horse as the whole thing is dragged out and if they've dug into the sole it's sore for ages even if you just press on that spot with your finger.
Here's another for Susie (horse totally sound on this hoof).