Resistance formula has a bit changed, so, it should now be :
Lua Code:
local championPointsForStatsCalculation = math.min(playerCPRank, GetChampionPointsPlayerProgressionCap()) / 10
local spellResistPercent = (spellResist-100)/((playerLevel + championPointsForStatsCalculation) * 10
local weaponResistPercent = (weaponResist-100)/((playerLevel + championPointsForStatsCalculation) * 10
Guess why there is no more CP 1-9 ? ..