Weirfan soft stepping is typically used to tweak/manipulate trajectory is it not ? Softer tip increases launch...
Softer tip (longer tip) is also used in clubmaking to compensate for lighter heads and lower lofts as the set progresses from short to long irons. I just put the set on the bench and aligned the steps and it looks like they were all tip trimmed on a half inch slope, so the 4 iron shaft going into the 7 would have 1 1/2" longer parallel section to the first step. If this would make the 7 play like an R or Sr. flex with the same trajectory that is what I am looking for. If it is still going to play like an S flex but higher trajectory that is not what I am looking for.