I replaced the helm.
Old helm : itemlevel 371 (PVP season 10)
New helm : itemlevel 378 (Firelands)
The old helm was fully enchanted and fully gemmed for maximum performance.
The new helm is also fully enchanted (same enchant) and also fully gemmed for maximum performance.
My new gearscore is now : 4998

Since this was a major improvement to my gear, my score cant be lower then i had before.
In my opinion the new score should be 5009
Can you fix this?
Many thanks in advance.
Realm : Azjol-Nerub (EU)
Guild : Fusion of Light
Character : Suunto
Level 85 Draenei Mage