By last I mean the latest 
http://www.dragphotos.com.au/p277323304/h7b2bfce2#h7b2bfce2
The 595RSR's were very slippery as they were on their last legs so had to curb my enthusiasm somewhat.
Will probably replace them with 595RSRR's
http://www.federaltire.com/en/products_detail.php?products_detail_sn=36
http://www.dragphotos.com.au/p277323304/h7b2bfce2#h7b2bfce2
The 595RSR's were very slippery as they were on their last legs so had to curb my enthusiasm somewhat.
Will probably replace them with 595RSRR's
http://www.federaltire.com/en/products_detail.php?products_detail_sn=36