Once upon a time in the 80's I had my first computer and modem and had my first taste of a computer network. I had to choose an internet name for myself. "Tinkerer" is what I picked because that was what I was. I tinkered with my computer, in fact, built it myself from an assortment of cast off computer parts and swap meet pieces. I'd been tinkering with everything all my life, from the time I took my toy telescope apart to my current job repairing electronic equipment and I've done pretty well with it.
Now I find myself wanting to take my concertina apart. I'm not crazy, I don't plan on taking an expensive Wheatstone or Lachenal apart. Instead I have a couple of cheap second hand buys from Ebay coming, a Scholer and what I think is a relabeled Bastari. I'm hoping for some guidance from one of the books available on concertina construction and repair. There are two available. The Concertina Maintenace Manual by David Elliott and another available from Lark in the Morning.
Does anyone have any opinion on which might be better for the concertinas that I mentioned?