They've been playing on the PP1 for this preseason (and last season as well FTM), but tonight they've being playing together on the 1st line and they've got fantastic chemistry. Guenther has 2 Gs and A. Keller has a G and 2A. I don't want to necessarily want to take Guenther off the Cooley line, but teaming him up with Keller could pay off huge dividends this season.