skills
ive noticed sometimes at certain jobs, a skill helps you get the product faster, for eg ive always got the union flag easily, on my low level dex/shooter build, and heard lots of complaints about not finding it from people going on aspect
the same for injuries at some jobs, for eg. as a trapper i never got any serious injury from bears/wolves even with very low LP, but someone playing hider, doesnt even go close to those jobs because of high HP injuries..
what if construction will help you level something faster, and it does, and leadership/repairing help in getting better quality items?
i know ive always hit luxury items with my construction/leadership builder, i also pray always, but i dont have lots of experience as a builder
im sure you all have the builder set when building at higher levels, so getting quality items praying/not praying, if my theory is correct, the points on repairing and leadership from the set are those that help you with better items
someone going pure repairing or pure leadership could test this easily
and yet another theory could be the character type, i for one, always go quaker