Zobex is right, as a rule the bigger the load, the greater are the odds - especially if the site was done by their engineering group.
There are very few sites with no or minimal traps, small ones done by the officers called the officers stash. Or Spanish era loads on land. But most of them were already recovered.
The records for fastest site recovery goes to the American Engineering group in 1945-47 employed by Fr. Santa Romana, Willoughby and the OSS which later became the CIA: 12 GOLDEN LILY SITES IN TWO YEARS OR AN AVERAGE OF 2 SITES PER MONTH!!! No maps, just location pointed by Major Kojima.
V
The big deposits opened from 1945-47 were not really hidden. MacArthur immediately became business partners with the Emperor, even before the surrender of Japan. My Dad's long time lawyer, now dead like my Dad, was an officer in MacArthur's gold recovery team. Gold was being collected from the moment MacArthur's troops entered Manila City. MacArthur had been in WW1 with my Grand Father and knew each other back to the 1916 Mexican Campaign. The guy was an egotistical maniac back then. MacArthur wanted to be President of the USA and that took a lot of cash to get rid of the people who owned and ran the Federal Reserve and such. Even with all that gold he could not get there.
There is such a massive story behind the whole mess as the gold program was initiated back in 1915. Imperial Japan was building the gold bunkers in the PH even before 1938 because this was a global program. The "spirit locks" on the big bunkers is not just spirits of dead people. It is beyond that, start to read who runs the world. The war time operations on gold deposits was not under the combat officers. It was under the Military Governor who ran the country, General Tanaka. That is fact. To access Tanaka's sites with out massive trouble and interference, you must be able to have Tanaka's men stand down or not interfere. THAT does not eliminate the other protector or blocking forces which are much stronger than dead people. To have the co-operation of the dead Japanese combats you need the "Swords of the Golden Dragon" which is the authority under which the gold was shipped to the Philippines. To access the biggest of Tanaka's bunkers, without interference, you need the "Sword of the Black Samurai" also called "The Black Whirlwind" Samurai. ( black is not the color of the skin but refers to the color his clothing and his ability to defeat all enemy ) But again that does not unlock the worst, that being the non human origin elements. The non human guardians.
If you like I will post pictures of said swords.
Z