there are a TON of variables in a discussion like this....for example
your "before" pic in your axle change thread show your trailer riding
really low, a lot lower than mine was....who and when stuff was modified or had different set ups from the factory are all possibles
you tow with a pick-up...your rear suspension presumes a further load put on/in it....I tow with an SUV (not really the case).....I'm guessing that's why you don't see a need for a WDH (that's a plus for you).....towing with such a device is a first for me (after towing LOTS of boats) and although they are extra trouble I must say I kinda like the way they act as a shock absorber reducing the bouncing after going over a bump/hole
you towing with the nose slightly down increases tounge
weight...I'm thinking you couldn't get that trailer to sway if you tried...LOL (the people who really know boat towing often opt for that configuration although they could easily move the axle or boat to acheive perfect tounge
weight....they do it so the boat is a little closer to level on the ramp coming in or out of the water)
there are no absolutes in the towing biz....you just gotta find what works for you...that's pretty clear
below the first picture is my trailer today in my yard....that's plenty of clearance for me....you're right I could increase it to reduce further the risk of bottoming out in extreme grade changes.... but I would pay a certain price for that by more windage driving down the road (already substantial....my Nitro is shorter that your pick-up/canopy)
as I said LOTS AND LOTS of variables....the snake oil salesmen will tell you they can solve all your problems by buying this or that gizmo...but really most often the answer is understanding the geometry/physics and tweaking it to fit your particular circumstance
the second picture shows what probably will be another one of my projects....it's taking the rear passenger side window out and turning upside dowm....that's to put the slider in the middle of the trailer allowing me keep it open (with the
awning out three feet like I usually park rain or shine) for ventilation and not worrying about rain while I'm not there....I got this idea from using the front window that way, for that porpouse....I can only really just crack the front window though...if I flip the rear one I'll be able to have it wide open and under cover....funny thing too I realized if I did that I could just swing the kitchen faucet outside !!!! not sure what use I could make of this new development but I'm sure I will come up with something LOL
ah, yes...another mod.....does it ever end???? LOL...cheers, F