I use a flip front as well Norm
Not for everyone though. A mate was using a mig and was doing a bead weld on 2 different thickness bits of metal together. He was having issues getting feed speed and volt right and was doing a test weld - 2cm, stop, lift front check put back down do a bit more
He got annoyed and started going quicker, got a bit arm tied and half lifted the visor and hit the trigger, sparks bounced straight up
Lucky he had safety glasses on as well, but still bloodshot and 'sunburnt'
Then worked out the eye wash station had a 3-6 month drowned rat it in, but thats another story
