After years of building RC kits, I've stopped buying the big, 2oz bottles of CA glue. Even though it costs more, I just buy a couple of the 1oz bottles instead. It seems to me, that the glue just doesn't dry as fast after it's been open for a while. I always put the lid back on when I'm done with it, but if I'm using a 2oz bottle, it just doesn't seem like it works as well as it does when it's freshly opened. Has anybody else noticed the same thing? My hobby shop was out of the 1oz bottles a few weeks ago and I'm using a 2oz bottle. I'm noticing the same thing.