Navigate to lua/advswl/config/crafting/sh_craftwos.lua
There you will find something like this:
wOS.ALCS.Config.Crafting.DefaultPersonalSaber = {}
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseHilt = "models/sgg/starwars/weapons/w_common_jedi_saber_hilt.mdl"
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseLength = 32
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseWidth = 2
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseColor = Color( 255, 0, 0 )
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseDarkInner = 0
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.SaberDamage = 50
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.SaberBurnDamage = 5
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.UseInnerColor = color_white
wOS.ALCS.Config.Crafting.DefaultPersonalSaber.CustomSettings = {}
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber = {}
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseHilt = "models/sgg/starwars/weapons/w_common_jedi_saber_hilt.mdl"
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseLength = 32
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseWidth = 2
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseColor = Color( 255, 0, 0 )
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseDarkInner = 0
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.UseInnerColor = color_white
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.SaberDamage = 50
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.SaberBurnDamage = 5
wOS.ALCS.Config.Crafting.DefaultSecPersonalSaber.CustomSettings = {}
The first set of values determines the default personal primary (Right Hand) lightsaber's stats
The second set of values determines the default personal secondary (Left Hand) lightsaber's stats
These will be either changed completely, or modified whenever using items, skill tree upgrades, etc.