So my friend and I are taking the game chill so we at the moment have a mix of 560-570 gear.

We wanted to try the new raid however it wouldn't let us saying how our item level was too low but...It wasn't

I had an item level of 565 and he had 564 but this is where it gets weird. We both had 5 items at 570 and 6 items at 560 yet for whatever reason his average came out lower than mine.

I had chestpiece, helmet, bracer, ring and weapon at 570 and he had ring, bracer, necklace, earring and boots.

Someone told me that the weapon makes a difference but...it shouldn't right?

The maths shouldn't change right? As with both of us the total item level of our gear is still 6210 then divided by 11 comes out 564.54 what I would assume is rounded up that allowed me to get to 565 but for him it didn't round up???