Originally Posted by Irvin
It is much harder to get a second string in 9H because it is a blocked hole by the string going from 8H to 10H.
I enlarge and use 8T to tie the mains. I enlarge and use 9H and 9T to tie the crosses, and enlarge both the rightside and leftside 9H and 9T, along with both 7T, so that blocked holes are not an issue.
And actually I asked why in the picture the lower
cross tieoff was 11T and not 9T, not
why 9H is not a tieoff (it is). If you look at the picture you will see that 9H is used as the upper cross tieoff.