Identification Variance Rate

Back before the Gavel update, I remember identifications having a variance rate of 30% higher than or lower than the average value on the item guide. Does anybody know if that's changed now? Because right now my friend and I each have a Nesaak's Shadow, which according to the website has an average Life Steal of 45%. However, he got 55 on his, which is within 30%, but I only have 22 on mines, which would require a roughly 50% variance rate.