Harland Sharp rocker shaft alignment

Now thinking about it one more time,
as I recall the torque is only around 20LBs
or so on the fasteners.

The holes for the Harlan Sharp shafts are big and
I wonder if the shafts ever got slightly loose it
would have a lot of room to walk back and forth
messing up geometry on everything. I have no
experience as I always run the 3/8 bolts.

Probably would not happen but I worry about everything!

What does everyone else think?