Obviously their history is why their SP is languishing but can...

Obviously their history is why their SP is languishing but can you explain why the process with the next generation machine doesn't "work"?

Is it the adhesive? Is it actually much slower than a human (once maintenance time is taken into account)? Is it incapable of laying bricks in certain configurations? Is the truck likely to tip over? Does laying bricks using robots involve more clean up work than normal bricklaying?

Also, given CRH's agreement actually sees them hand over money, why haven't they picked any of these issues up (other than speed) when they first started looking at it?

By the way, I have no problem with you being here and kudos on your successful business.