Hank, I understand your question, but a moderator might say it goes in a different forum.
But, let me quickly answer you. As everyone can see, lots of 3 blade stockman designs, had or have brass liners, two back springs and three blades (clip, spey and sheepsfoot). The two smaller or secondary blades are 'crinked' or bent near the tang so they will fit in the blade well in the space provided by one spring and maybe a brass center liner. Usually the clip has its own spring. Sometimes this design works well and sometimes it gets a little out of whack and will rub someplace or another.
Buck changed their in house made stockman (and two blade) 300 series folders in the early 90's to a spring for every blade versions. Some Camillus contract versions continued with the old style till they were dropped.
So hopefully, with a post 90 Buck stockman the three springs and three blades are giving 'rub-free' service. If not, something is out of alignment. ......... 300Bucks
Both of these are Buck stockmen just different eras. You will sometimes see a stockman design with one spring larger than the other to get more room. But all of Bucks post 90 Stockmen will be found with a spring per blade and no crinking.
For any seeking knowledge of what is 'crinking', here is a photo of a early Buck stockman with crinked secondary blades.
On the left, is photo of the 'one spring wider' design, the larger clip blade gets this spring and the two secondary blades make due with leaning over into the slightly larger blade well. The brass center liner is cut out to the shape of the spring to make extra room. The one the right is the first version three spring which had brass liners. They did this a couple of years in the late 80's.