Tengo,
Yes a couple of times but ££££ and the fact that pads swap is caliper off on Alcon AE [Advantage Extreme] compared to MPBBK /M sport brembos put me off TBH.
If EBC yellows aren't working for you, perhaps consider grabgbing yourself a bargain and buy OEM M4 sport pads F&R off ebay
http://www.ebay.co.uk/itm/BMW-M3-M4-...8AAOSwTA9X3k9J
I have these upfront - very good.
BP