Initially I wasn't after EBC pads for my big blacks due to my experiences with my reds, however after speaking with Stuart at K300 Performance he recommended the yellows as he runs them. I relayed my experiences with the Red pads and he seemed to recognise the problems I was having with them and re-assured me that his experiences with yellows was the opposite. I saw Stuart at a Donington track day and tried to follow him for a couple of laps but only lasted about three corners before he was off, so I thought if they are good enough for him, they'll be good enough for me!! They certainly have plenty of cold bite, but I can't attribute 100% of that to the pads since i've changed the discs, calipers, hoses and fluid all at the same time so who knows which of those elements has contributed the most to the improvement in braking performance. Having said that the pads that were fitted previously (which were just standard pads) were fine so something definately changed when I fitted the EBC reds and Zimmermans.