1.If you do that is more manuverable but generaly you want CoL slightly behind CoM 2. For fun. though generaly when I make a space plane it's not an SSTO
http://fc02.deviantart.net/fs71/f/2014/077/4/2/you_never_forget_your_first__by_dreamcasterpegasus-d7aqkeb.png it's um 2 people kissing.... Hey don't judge