The best pads I ever had were Coustsinks, until last year when I fitted LGMs. They were then the best until I recently fitted some plastic backed Cousts (from Jack). Nothing more can be said than INSANE! Fresh grind, dead grind, smooth rim, wet, dry... Whatever the conditions they are siiiiiick.
Extremely unsociable pad because of the ridiculous HONK, but I guess most pads on grinds are loud - these are just super duper loud haha. Jack charges £25 plus Paypal fees.
To be fair though I have fitted the Coust pads on a spanking new wheel-build so they are perfectly set up, whereas my LGMs were being run on a knackered rear wheel and not square to the rim even slightly - and yet they still kicked ass!
Basically, Cousts/LGMs and you're a winner.