very interesting old fashioned discussion. oh and WW3 has already begun, did you not know?? and no it is not a joke
Well, to be honest it is all about legislation and homologation in our all beloved European countries (should be one legislation and slowly getting there as we know Europe is slow in thesemtters).
I know (and i guess it is for the whole of Europe including the UK
) that saloon cars and even trucks (yes also American large capacity Dodge or Chevvy or Ford) are only allowed to tow a max of 3.5T, whereas in the US they easily tow up to 6T (or 8).
That being said, the max amount on the hitch is clearly stated on the CAR manufacturers manual (if you install a hitch of course). And you a cannot exceed that amount.....if yes the police will accidently stop you and make sure the hitch weight is adjusted (as well as the MTM of the trailer and combination car/trailer weight, licence etc...with ,as i know in Belgium, some fines you will always remember)
Now as far as i can estimate the problem: move the axle (s) back or forth depending you need less or more nose weight on your trailer..bfor you start doing this makesure you fill up your fuel tank with approx half the fuel or sth that you intend to tow) and all the gear in place you normally carry such as anchors etc....Then reposition the axles or have it done professionally.
If there is a problem with the transducer, fix that problem after you have the right front nose weight (detachable or some other solution?)
If you trailer on a regular basis, it is a real joy to drive with a well balanced trailer (the same as driving the rib well balanced on the water) and it is surely also more secure.
Oh and for the Aus and the Us people on here; it is forbidden to use chains to attach the trailer to the hitch. We need to attach only a small iron wire that will enable the breaks automatically when the trailer accidently comes off...whether you like or not...it is legislation...dura lex sed lex
i hope this helps and contributes to a better understanding on both sides of the ocean :-)
ps: i like these big trucks towing big boats, wishing it could be done legally here too, wow with a bigblock at low fuel prices ...we can onlydream about it