Magic? Lawrence, you might wanty to cipher that one again . Down here, south of the border, if you remove 50% from the front, you'd put 150% on the rear axle.
That said, I wholley agree with the idea of using a tape and paper to lay it out. Sort of like using a pencil to solve a problem rather than a calculator, and just having blind faith the electronic thingy is correct.
And Phil, he's gonna pull a very short trailer.😜