The winner of the Specmix lays around 900. I've been to the competion. The record was 914. The reason it's often in the 750 or 800 region is that most of them get deductions from the total when the quality is checked, so 900 goes down to 700. Most of them lay over 900.So, you claim a brick champion does 900 in an hour (more like 750; go look at the results of the SMBL500) and you say my claim of a rate of 1000 in a day (125 an hour) is unlikely?
Your claim of 1000 a day was for manholes. I've built quite few manholes and you can't lay anyway near as many bricks as you would on a 9 inch party wall.
The work is all done using the level. Bricklaying is at it's quickest laying to the line. As soon as you have to start using the level, like for piers, manholes etc, the numbers drop a lot.
Manholes are also built with engineering bricks, so that slows you down a bit as well.
