Since the discussion has gotten slightly off-topic and reference was made to the former Tahiti Aggressor, FWIW, I can at least share a bit of my folklore knowledge. I was on it in January 2005 and on its next to last, if not last, Tuamotos trip April 15-22, 2006. It was a trip that went Fakarava to Rangiroa, but the crew opted to spend a day diving the Southern Pass in Fakarava first because it was a rare occasion that they could do it. The normal itinerary only included the Northern Pass, then Toau, Apataki, and finally Rangiroa, and then the reverse when going back to Fakarava the following week. After that, they relocated the boat to the Society Islands, and the rest is history.
Initially, the franchise owners were planning to relocate in February 2006. I am guessing that they received enough flak from customers who had already booked and paid that they agreed to at least honor all trips thru the latter part of April 2006.
Some of what I heard as reasons has already been expounded on here - the difficulty in reliably getting food and fuel to the Tuamotos. Along those lines, I am sure that basic supplies and spare parts had to be equally difficult. The franchise owners - not Aggressor - also cited the apparent reliability (lack thereof) of Air Tahiti in getting customers from Papeete to the Tuamotos (I don't recall ever running into such problems in the 4 trips I have done to the Tuamotos), vs. getting customers to the boat within the Society Islands, since there are more daily flights from let's say PPT to Bora Bora.
The other reasons that I heard are merely hearsay and should be treated as such. One of them was that due to the nature of the diving in the Tuamotos, they could not attract the average Joe Shmoe diver, only advanced/experienced divers. That does not jive well with previous postings on this thread that alluded to the boat always being filled to capacity, altho both of the trips I went on were full. One of them was a private charter tho. Besides, liveaboards that do Cocos, Galapagos and Malpelo, to name a few, survive just fine catering to the more experienced divers. The other hearsay reason was that the locals were none too happy with their presence, and more specifically, that shark feeding was being done from the Aggressor, because they felt that it affected shark behavior. Many locals spearfish, so I can see where that could be a problem. But that is yet another topic that is off-topic and best left for discussion elsewhere in the forum.
Veering back a little on topic, and when the FP Master will start running, assuming it hasn't already. Growing pains is a fact of life. I don't know where the boat was being built but Murphy always has a way of rearing its ugly head. My one-week trip on the Sri Lanka Aggressor would have started today but got canceled exactly a week ago. Mine would have been the third trip after its maiden trip.
And as far as the boat being completely booked by dive travel specialists and whoever two years in advance, not entirely out of the realm of possibilities. That is typical of choice destinations in the Eastern Pacific, altho I am more used to seeing that kind of demand for high season weeks. Trips that I have chartered in the Eastern Pacific - be it Cocos, Galapagos or Socorros - have always been at least two years in advance. Otherwise, you are seldom going to get a choice week or trip. It is a bit unusual that it is booked solid yearround tho, but who knows. Maybe those charterers know something we don't......it is certainly damn good diving.
There is another local boat that I have done that is available for charters only, and that is the Itemata, which can offer up to three dives a day.