The sludge is yeast part of the point of racking is to leave the yeast and trub behind. I strongly recommend sanitizing the blueberries to avoid infection.
Here is my second ever label. I am still very much learning so go easy on me but I would love some constructive criticism. I made this with paint.net and I did the lettering in GIMP
Josh
My advice to you is this: try to think of your ultimate end goal. Is it 10 gallon? Is it a RIMS? If you can id identify your ultimate goal early you will avoid buying equipment that will not be a part of your end-goal system. So for example, buying a nice SS fermenter would be wasteful if you...