I think 2 or 3 inches of set is exceptable,but not to mix up set with string follow,all wood bow take some set,string follow is when the bow looks like it is strung after you unstring it.I like mine to wind up at least flat if not a little reflex.The problem is if you don't introduce some reflex into the bow first
and it is flat to start with you will get more string follow but no necessarily more set.I know ,clear as mud.
Some think that how much set it took is how much string follow it has.
Say you start with a bow with 4 inches of reflex and it ends up with 1 inch of reflex you have 3 inches of set but no string follow.Maybe that will help.
Pappy