Nessmuk (a.k.a. George Washington Sears) suggested 'don't neglect the auxiliary paddle, or "pudding stick." as my friends call it ... use the pudding stick, and you can go almost anywhere that a mushrat can' on pages 138-139 of Woodcraft in 1895 as shown below. The full book is available at https://archive.org/details/woodcraft00sear_0/page/138/mode/2up if you want more details.
Although a very short paddle like a Nessmuk "pudding stick" will eliminate the need to shoulder cradle, that may or may not be an advantage depending on one's paddling skill. Here's a fellow paddling one-armed with what looks like my bent shaft Sawyer Manta.