The white spots in the neck are just yeast. I've had that happen before as well, especially using dry (rehydrated) yeast, or just pitching dry.
Kegged: Cascade/2-Row SMaSH Pale Ale
Kegged: Galaxy/Vienna SMaSH Pale Ale
Kegged: Malty SNPA clone.
Kegged: LH Milk Stout Clone
Bottled: LH Milk Stout Clone
Primary 1: Prohibition Lager
Primary 2: Empty
Primary 3: Rick's Red Ale
On Deck: Wheat, maybe with raspberry.