Oh Widget,
I despair of thee, your figs still aint right! I aint no lover of S'Winch but you quote the X9 as 4300kgs an it only pulls 4100kgs! You list the figs for 2600kgs (a critical load) when both Warn and S'Winch list those speeds for 2722kgs!
Methinks you bin readin Alfie Byrnes web...