Then at a later date after concrete has set stands in the post, then using a line from first and last post - accurately marks off the post - and then cuts off the excess few inches with a disc cutter, after which he then concretes in place.
Is this normal ? seems a lot of work but he advise this is the professional way to do it.
Second question is - is there a simple way /technique to keep them upright while concrete sets - as these are 8' posts, I can see a lot of 4"x2" needed to hold a post upright. I don't have loads of 4"x2" so it would mean only 2 or 3 posts at a time - very slow.
Rick -- <remove ANTISPAM from my reply address when replying>