I am honestly not sure if this has been found already but I thought I would share this with you. This quick little tip has allowed me to move object nearly perfectly in place and allowed for well placed object. This trick will move an object so little that you can nearly perfect it. How To: Well it is simple, first you grab the object you want to move. Now slightly look towards the direction you want to move it. Now repeatedly toggle the right trigger and you will notice that the object ever so slightly moves. This works best when you are trying to use the save/quit method for floating objects. The closer you get to the object, the less it moves, but it still does. Just thought I would share this with you.
I dont think there has been a thread about it,but I think almost every forger knows about this. Kudos to you for figuring it out by yourself though.