I am in the same boat with DS5.  We have not tested yet, but my gut tells me he's gifted.  I find that some people are offended by my assumption and so I'm careful about how I talk about it in certain settings.  On this forum, though, I feel I can speak openly about my concerns, beliefs, expectations, etc.  In the interim to needing testing, I'm educating myself...through this forum,  books, etc.  Am I 100% confident all the time?  No, I have my doubts, but I've learned that until the time comes for testing, I just have to trust my gut.