Okay, so I brewed yesterday and about 20 min or so into boil I started noticing alot of colagulation on the top of my wort. I've brewed 3 batches prior to this and never had or seen this before. I scooped off most if it (approx 2 cups). Being suspicious, I looked at my grain bed after sparging and noticed slight evidence of the same type of stuff there (about 1/8") on top of the grain bed. I proceeded to finish and pitch my yeast (WLP002) uneventfully. I checked my carboy this mornong and found about a 1/2" thick of similar looking material on top of my wort. My airlock is showing plenty of evidence of fermentation. Is this normal for a high floculation yeast, secondly my wort seems unusually cloudy even though I did a good run off prior to going into my brew kettle. Any words of wisdom would be greatly appreciated here. Thanks