Pete, the bwb 'detail', is when my girlfriend walked through the shop. I do not recall what she came to talk about, but it made me forget what I was doing. It was a good lesson. Hopefully I will not make that one again, ever.
The kerfing is the Ryan A4 kerfing. It is cut short on the bandsaw, which leaves a 'falloff' piece of kerfing that will work great for sopranos, when I start making them. I like that kerfing. One set, plus one strip will do 2 instruments. It is super fast to install, very friendly to work with. On subsequent bodies I have cut it slightly less tall.
For the soundhole, I was just guessing, and a very certain guess is that it is not in exactly the correct dimensions. My experience with tuning speaker cabinets makes me believe that soundbbox resonance is very sensitive to slight differences, and also that a side soundport might not necessarily behave like a single hole of the same area. I do not know. This instrument was not where I chose to dig deep into soundports. My first uke, I think the single soundhole was too small. It has opened up seriously since I built it, I am happy playing it, it sounds ok. It does have a harp like quality to the sound, and I suspect this is from too small of a port. My teachers 3 ukes all have what I think are too large of holes, as there is a quality to the sound that I do not care for, also.
When I was putting this together, I studied each of the plates for several days before gluing the top on, and then a couple more before closing it up. This body is lively, cant wait to hear it.