correct! When you forge alone you get all transaction fees, but you will also have a very high cumulative difficulty. The fork with lowest cumulativeDifficulty will win. Sometimes it needs many blocks, when forks have nearly the same forging power.
The client can pop (throw away) up to 720 forged blocks. Only after 720 blocks/confirmations a balance is a "Guaranteed Balance".
current situation:
"107.170.177.47": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14752,"cumulativeDifficulty":"10784819563320782"}
"node2.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14764,"cumulativeDifficulty":"10785475097746912"}
"node3.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14764,"cumulativeDifficulty":"10785475097746912"}
"node4.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14478,"cumulativeDifficulty":"10770923978697228"}
"node7.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14748,"cumulativeDifficulty":"10784758504811616"}
"node8.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14764,"cumulativeDifficulty":"10785475097746912"}
Now they are in sync again:
"107.170.177.47": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}
"node2.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}
"node3.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}
"node4.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}
"node7.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}
"node8.nfdcoin.com": {"protocol":1,"requestType":"getCumulativeDifficulty"} >>> {"blockchainHeight":14777,"cumulativeDifficulty":"10786510730941018"}