I recently used Wyeast 1084 for the first time. I made an SSTP clone, harvested the yeast from that batch and then pitched it into a High Gravity Irish Red (1.076). This stuff is smoking hot yeast!
I pitched a starter in the SSTP clone, and it went to work within a couple hours. I was impressed with how quickly started. I racked it to the secondary fementer a week later, when I brewed the Irish Red, and it all looked good. A few days ago prior to kegging this bad boy I noticed some strange flocculation going on. A white film was floating on top of my beer. It was unlike anything I have ever seen during any stage of fermentation. I was relieved to discover it was not malodourus at all. A good sign, that it was not infected.
The SSTP clone got racked to a keg for conditioning yesterday, Terminal Gravity was 1.010, the beer tasted fine, aside from being flat.
The second time with this yeast, it got pitched into my Irish Red, it blew the lid of off my primary fermentation vessel. It literally starting fermenting within two hours of pitching the stuff. I haven't seen the freaky white film on this batch yet, although it's only been in the secondary for six days.
Anyone else experience freaky ferments with this yeast?