My aching eyeballs after practicing FCAW.

I also use a cheapo welding helmet. Its better than my old expensive auto darkening helmet. Technology has changed, and this stuff gets cheaper.
But,some arent as good.
Hurting your eyes,that has to stop. Fixed shade 10 or 11 should do, i do add light to my welding area when i can, as my eyes arent what they used to be either.
The thing about cheap helmets is the uber shitty headgear,with a name brand you will never go back.