I did try the USB cable, and it made not a single sod of difference. But since I’ve bought it I may as well use it.
And you can lose the attitude too. At what point did I say I hadn’t tried a heavier ADSL cable, hmm? I advised not to bother, which were my exact findings too - a complete waste of time. You asked for advice, but when the answer opposes what you want to do, you get all huffy with your answer. Weird.