xray t3 alloy drive hexs

[moggy12]

i have just won some of these of ebay these are the hexs you put on end of driveshafts before wheel fits onto them the problem is on the xray t3 2010 these are black but the ones i have won are silver with 1.5mm offset does this mean there are 1.5mm wider each side ? if so how will this effect the handling of my t3 ? also when using my set up guages will i have to say minus 1.5 degress each side to get my current setup settings ? thanks for any replys