Trailer specs are different...my last trailer (Karavan I think) the bunks were submerged when the water level was just above the wheels' axles. My new trailer, the entire wheels are submerged when the bunks are at the right depth to drive 1/2-on , then crank the rest. My new trailer bunks are mounted much higher, relative to the axle, than the old trailer. Not adjustable because it is a welded trailer without height adjustments on the bunks. I love the new trailer, but it has to back in MUCH deeper than my old one.
You will never get the stink-eye from anyone at a launch by not power-loading with throttle....just a thought.