I have checked the FAQs, and the tips are excellent, yes!
Next time I'm out, I will try to take my GoPro with me. I was a passenger on the tube recently, and I believe I have 60ft rope, and I couldn't stay in the area directly behind the boat because of the spray, I couldn't open my eyes. I have seen some pictures online of the boats on plane, and the jet looks completely unimpeded by the gate (see below). Mine does NOT look like that. However, my "neutral" seems ok; and I don't have any vibration or issues at WOT. Maybe my Cobra (original) fins are part of the issue??
I never really thought much about it, but the more I put together (possible top speed loss, port engine topping out at 9800 rpm, spray behind the boat, visible difference of water jet appearance when on plane, and visible back-spray when being towed behind the boat), I'm thinking its worth my while to investigate further.
I realize this is the 230 section, but this discussion seems pertinent to likely all the boats.
PS: Can you shed light why the seeming animosity between the two forums? I've been an avid member of the "other" forum, and it appears that it would be of great benefit to all Yamaha Jet Boat owners to have one resource for information. I looked at the FAQ, but it appears "hush-hush" as any discussion about the two forums and their interaction with each other.