Adrian, did you have to place any spacers behind the bearings (1mm per side, etc)? Also, did you have to add anything extra to either side of the wheel (2mm spacer, etc)? I got some SP1 wheels that I'm going to install on my 2007 and I noticed that the indentation is not there like it was on a SP2 front wheel that I did on my 2006. Where your SP1s like that?
Any others that have done the SP1s on 2006-2007s are welcomed to respond.