goat cheese...
while I have no answer to your question... I think of it like this... here in cali... a cut will get popular and pretty soon there will be a buncha variations of the strain that permeate the market. It gets really grey because who is to say the gram from the cut you tried is "the real deal?" What you tried is just what you measure "plank" against.
Sure..
..but as i understand it, Amsterdam/Dutch cannabis-scene grow their indoor product from clones, not from-seeds-to-harvest. If this is so, it's possible the planck/Santa Maria in Amsterdam is from a circulated cutting, and the Planck-clone was widely circulated as told by No Mercy @ their website:
"The distribution in Holland of the real Santa Maria clones was done by the former Highlife-magazine chief editor, Bernt Gundersen, because he was bringing his new "found" clones of a strain that is worldwide known by now... to No Mercy Supply... to Cees.
And you better be sure.... he took care of free distribution (50% of the Coffeeshops in Holland have the name Santa Maria on their price-list)."
It also didn't taste like typical dutch-strains at all, meaning similar to Northern Light/Skunk#1-hybrids.
Some of the pictures you can find of No Mercy's Santa Maria, some plants look quite like Silverpearl-phenos, very different from Esko's, but yea, who knows for sure
...and i can't remember much about it now, see I WAS VISITING AMSTERDAM!