Nice example. but the crown type with suasa is found on both sikins and rencong. (see example). Personally I like this type a lot, but technically it is much simpler, so I would assume it had also less status.
statistics is not my hobby, but my gut feeling says that this type of crown must have occured on sikins and rencong more or less in equal numbers.
The type that Erik means with the double crown made entirely from gold alloy with the elaborate carvings is a type of crown that I have seen on various sikins, but the only rencong I ever saw was in this Bronbeek article.
All together I don't think that we can get to the bottom of the meaning of the various crowns. You would need museum details not only with date of collection. but in fact also info on the rank / status of the original owner...
I am afraid that KNIL soldiers often took these weapons at a monent when they where not able to ask the former owner about their status. Not the prettyest time in our history.