Rhoetus:
While I don't joust, I do play with some rather hard hitting people with sticks.
The SCA is pre-17th century. I.E. pre 1601 not pre-1650 as the cavaliers would have people believe. Don't get me wrong, I like the look of a cavalier persona done well, but it is out of period for our game.
So, 17th century examples didn't exist yet and as such, I don't have access to them for use in my research.
besides, I don't mind the look of a bargrill when painted flat black with linseed oil and coal thus rendering it almost invisible at first glance when compared to the bright shiny polish of the rest of the helm.
Thanks for the insight and info though. I really appreciate your input on this as well as all others.