[kdanie]

Darren, I think the Bergman shroud/fan set up is a copy of the BAS shroud/fan. The BAS is popular in europe and seems to work well. How well Bergman copied it may be an issue..... I remember seeing an article in HVW on his fan set up. It got good reviews but he is a major advertiser so I doubt the mag. would have said anything bad anyway. Not a difinitive answer for sure. How long have you run your fan/alt?
ken