I fish from a zodiac with sectioned aluminum floor and it's nice to be able to stand up and fight the fish sometimes. Air floor will have high chance of puncture when fish comes on board and start flo ...
I've used the FG knot for my windon leader to catch amber jack and black fin tuna on the party boat. I don't know the weight of the amber jack; but the black fin were around 15-20lb. FG knot is good ...