I use 505 spray, and have never seen Sullivan's.
For the 505, I go direct to quilting, if time permits, without any serious problems.
From what you have said, it sounds as thought the Sullivan's may "break down" and not hold the sandwich together after a period of time. The 505 will keep it together, forever ... yes, I have some old UFOs!
Re the residue on the needle ...
I think that is more caused by we with the heavy trigger finger on the nozzle. for putting more on than is really necessary. I keep some single packed alcohol swabs at hand, and if residue builds up, then I just give the needle a good wipe down and it is gone.