Re: Does anyone use a tongue extender to launch the boat?
Besides, trailers are supposed to be pulled level! If it isn't, it should be fixed, at least in my book. They make different size tow-bars for just that reason.
Even with the different sized tow bars, sometimes you cannot achieve that level towing unless a custom sized receiver hitch is made. Even on the mini van, I turn a drop hitch upside down, and it still is angling downward a bit. My trailer sits a little high, and that is part of the angle issue.
Now as far as you stating earlier
Hitch extenders will REDUCE tongue weight, not increase it. You get more leverage... That's one thing to keep in mind if you make a permanent mount one, you may have to slide the boat forward a little to keep enough weight to trailer it safely.
Adding weight to the hitch side of a trailer NEVER reduces tongue weight, it will only add to it. Think about what you said, add weight to something to make it lighter. The only way you can reduce the tongue weight is to increase the weight on the opposite side of the balancing point, which on a trailer is the axle, and add weight behind that point. Yes, you may gain more leverage with a longer tongue, yet the weight of that tongue is also increased.
What I stated in an earlier response was based on how leverage would make it appear to be lighter. Still adds weight regardless of how it is calculated.
Matt