Terry has several decades of experience with salmon fishing including regular visits to Alaska and Iceland. I think it is interesting that he chose to make a click type reel. Two pawls may be better than one.
Terry is doing his drawings with Autocad LT. I have reproduced them here but it took several steps to communicate them and turn into jpeg format. If anyone is serious about reproducing this design, contact me and I can provide PDFs with better legibility.
If you combed through this blog, you could find drawings for seven different reels. At the Categories list on the right side of the blog page, click on Plans.
Update 14 Oct 2020: Here is a communication from Terry after I made this post.
“The answer to your question regarding the 2 pawls is that very definitely yes, the 2 pawls make a huge difference in the clicker drag on this reel.. This is not something new to me. In my previous years of salmon and steelhead fishing, I have always turned both pawls on my old Hardy type of reels so they are in contact with the gear and set so they are working in the same direction. This greatly enhances the drag on the reel and with the overlapping palming flange, you can easily handle even the larger fish encountered. I like the clicker drag system, even on larger reel for larger fish because this system is about as simple and foolproof as you can get. I have never had a failure of this type of system, which is not something I can say about more elaborate drag systems on much more expensive reels I have used as well over the years.”
My observation on his pawls is that they are spaced 92.5 degrees apart. Because he has a 31 tooth ratchet, the pawls are exactly 8 teeth apart and so click over simultaneously. I would like to play around with 2 pawl placement and see what different sounds could be had. Maybe something like the Harley V Twin where the cylinders are 45 degrees apart.