A few years back I wrote a book about making bent shaft paddles. It was a version 1 book. A couple years later it is in dire need of refinement and updating. So don’t buy this current version. Wait for the update. It’ll be out shortly after Canoecopia.
If you already purchased the book, I will give you a free copy of the updated book. Sorry about the timing, if you’ve already made a paddle. Hopefully the updated book will inform a bit more for your second paddle.
To get your free copy just take a picture of you and the book or the paddle you made based on the book and email it to paddle(at)wavetrainsup.com