I own over 70 Dowdle puzzles. When doing the North Lighthouses puzzle, I noticed that the pieces didn't stay attached as well as other Dowdle puzzles, and the pieces felt thin. After completing the puzzle, I used a caliper to measure the thickness of the pieces of this puzzle, and pieces from several other Dowdle puzzles. The pieces of this puzzle were 0.067 while the other puzzles measured around 0.072. This is not much different and probably is only a manufacturing variation, but I noticed it. I love Dowdle puzzles because of their quality, but this puzzle has been the one exception to the great quality that I have seen.
I have 128 puzzles, glued and framed as I love them. These are the most fun and truly my hobby. I give them completed and framed as gifts. I had the pleasure of visiting the Utah office. It was very special.