IGN gave Mass Effect 2 a 9.6 on 360 and a 9.5 on the PS3...why?

[Blood_Tears]

When ME2 released on 360 IGN review system was anything from 0-10 including .4, .6, .9 etc. Since then IGN changed there review system to only have full numbers and .5 numbers such as 9, 9.5 etch.  There is no more .6 for them.