In a recent post Russ mentioned Spitfire Advanced as his choice of prespray. This got me interested in what it is so I did a little research on the cleanitup search and I noticed a few years ago this product was used by quite a few on here. My question is are many still using it and if not what did you change to and why? It looks a great product so I plan to give it a go myself, I'm just interested in everyone else experience with it.