I noticed that you cited the string through bridge design as a Con in your video. Actually, I used to think the same thing. But it won't take any longer to change the strings than on a tie style bridge. When I make my ukes with this design I drill the string holes through the bridge at a bit of an angle toward the soundhole. When you insert the string through the bridge if you just rotate it clockwise/twist it as you push it in more often than not the string will pop up near the sound hole and you can grab it very easily. This design also puts less stress on the bridge which should keep it from ever deciding to pop off for you.