Is there a knack to getting the bumbo tray clipped onto the seat? Try as I might, I can't get the little clippy bit at the bottom of the tray piece to go under the bumbo - it just pokes into the seat, iyswim. I can do it with no baby in the seat, by turning it upside down, but this is clearly not an option when actually in use!
Am I just being useless, or does anybody have a method for doing this?