U take a motor mate and push and pull and see it flex and move and use a transom stick and do the same and see what happens. There is 500+ lbs hanging off the back with no support with a motor lock the same 500 is still there hold a 10lb weight straight out with your arm this is same idea as the engine and transom theory with a motor mate now if u was to take a sturdy pole from your hip to your wrists and u can hold the same weight longer