I’ve often thought about which is more difficult, starting mid run or with a break shot. I think for me, mid rack is technically harder because, as you mention, every milestone is one additional break shot away. For these guys, I don’t think it matters at all because they are running such big numbers. Also, opening break is usually so ideal they could have barely placed the balls better by hand. I really think the whole mid rack vs opening break shot thing is splitting hairs.I can’t be bothered looking at your post history, but it sounds like you’re new to the world of 14.1 and haven’t followed these high run attempts.
You understand that John S pursued the 526 for months? And that Jason S played for 12 hours a day for a week for his 714 or wherever it’s become?
Also, anyone who has a hundred plus balls will tell you that the first rack is really not the problem. Of course, you have to pot the balls, but the first 14 balls really isn’t an issue. If anything, starting mid way through a rack only adds more break shots to your run, which is still insignificant in the larger context. Silliness.