Last first - Pearl Jam - Metallica - Nick Cave - Clairy Browne - and of course Stevie Ray Vaughn (Because i don't give a damn WHAT Tim Wilson says - Stevie Ray NEVER missed a note.)
I actually don't use any. I start my yeast in a solution of sugar water and some concentrate, and I gradually build up the level of concentrate over about three days. With EC-1118 I just pitch it and forget it.
Single pack.
Room temp - even a little warm. My current batch was probably rocking along in the 70 -75 range.
I have to admit this is NOT a ferment i put a lot of scientific endeavor into! This is my set it and forget it critter. What's it down to now, and how does it taste? If it stalls out but tastes good drink it. The numbers you have above put it at 5.3 -5.5 ABV that'll get ya swimmy. If it is still going down - let her go! I've had great luck with this - but if you read through those two links above you'll find fellers who have it take 2 months or so to get from A-B. If it stalls out for real, and is too sweet; pucker it up some - Some real lemon will tart things up nice.
I wish I could get all technical and high fallootin with my advice, but i don't have much of that kind for this beverage! It is kind of sweet tart kid stuff that my wife, kid, and nephews really like, and the sort of thing I gravitate to from time to time when the really juvenile voices in my head need to cut loose and bark at the moon - if ya fallow me.