I used mostly CA for several years. I was constantly getting headaches, and my eyes were always watering. I wore goggles and had a fan blowing across the building surface. I rarely use CA now and my headaches have quit and my eyes don't water near as much. I don't know if the CA was the cause but as I mentioned, I rarely use it anymore. The difference in weight of the model is not that significant. Speed yes. I use mainly Titebond. You can thin it downwhen sheeting wings and you still have a good glue joint, with plenty of time. Choice of glues is left up to the builder, as it should be. As far as I am concerned, I am retired and not rushed for time on building, so I use Titebond. Home Depot, Lowe's Hardware stores sell it in different sizes, and it doesn't cost a fortune.