auto dark welding helmets what U use

I have a Lincoln a Auto darkening one. Have had it for about 10 years now. If it ever goes south I will spring for a 9-13 adjustable one. The one I have just has two settings 10 or 11 works well unless I am welding aluminum then I wear a pair of sunglasses under it as an 11 isn't dark enough for me with the brighter flash.