+ one. I do the same as Matt.I use an old helmet set to grinder mode.
Deffo full face,i to have a mask set to grinder mode,and thankfully i did,had a blow back once,almost brown pants moment
An auto darkening lid is the right item But do as I say. Not as I do. I use dark safety glasses but only for short periods. Had I a lot to do I would use a mask.dark glasses are for the cool kids on TV. my bother learnt the hard way sun burn his face cutting stainless scrap barrels up shade 5-8 face shield or welding mask with the right settings should be used.