Good job. The wake, especially, looks much, much better. All it needs now is a little bow wave, and... perfect.
The appearance of the FX is totally dependant on the contact point type and location on the aircraft The FX itself is fine, but the contact points determine where you see it.
I like the Golden Hawaii aircraft but I have not tweaked the contact points as of yet.
Unfortunately that is something the person that installs the FX will have to do. It is not possible for me to download every sea-plane and water related aircraft/boat on the net and properly locate the contact points. I could spend months just doing that.