Completely agree. Almost all my AS fade quickly or up to several hours at most.I'm not sure I understand the question.
Is your primary issue with Stirling that you can't find scents you like?...or that the scents don't last long enough after the shave?
Personally, I don't expect the scent of any of my shaving soaps (or even my aftershave) to last. IMO, that is a job for cologne or EDT.
...and the scents of even my most costly soaps are fleeting.
I do have a couple AS that do last, though, but they are truly more like a cologne e.g. B&M Cologne Russe ("cologne" being in the name might be an indicator?) or Le Grand Chypre last for hours. B&Ms Cheshire or Seville while excellent scents do not last.