I just got in my Weldon and applicator bottle. The needle seems to be too large. The Weldon 4 just pours out once the bottle is inverted. It doesn't seem to just drip like I've seen in the videos. One thing that I noticed is that the applicator tip has a yellow plastic band on it. All of the ones I've seen online are blue. It was sold as a 25 gauge, but I am not sure. Are they color coded ?