I use either original formula Titebond or Elmer's Carpenter's glue for general construction. I can't tell the difference and like them both. I didn't like Titebond II because it seemed a little more rubbery than regular Titebond and harder to sand smooth. I also use a lot of airplane glue (Sigment or Ambroid) for edge joining exterior sheet because the excess wipes off with acetone, MEK or dope thinner and what's left sands very easily.