International Ultra 2, very different than last time

[dexport]

Hi guys. Its been a while since I wrote something here although I read through the posts once or twice a week.
I thought this video might be interesting to some of you, hope its ok to post here.

Three years ago, before leaving Brisbane I applied new antifoul(International Ultra 2) and was very happy with how it lasted so applied the same again this year. A very different outcome this time!

Only a coupe of months in the water after a fresh coat of bottom paint and the hull is covered in growth. To make matters worse, I applied HARD antifoul paint and its very soft and has in places already disappeared.
Do you think this is acceptable?

https://youtu.be/RmkxrhMm5-8