xxgoldxx
Short answer is I don't know enough about their operations to say. How many ports, how difficult they are, and how different they are to my experience.
Other experienced pilots brought into our operation have generally had 2 - 3 weeks ICUS before being let loose on their own (but not into the reef lagoons on their own for while longer).
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PA29
There may be a few experienced floaties around but how many are looking? Of the pilots that have recently left us less than a third are currently flying seaplanes commercially.