Looking forward to seeing the result Sent fra min FRD-L09 via Tapatalk
No woodworker here but I like how boiled linseed oil penetrates the wood and preserves dried wood. I also like the finished look afterwards. I'd imagine you can apply the product once the BLO has cured/dried to further protect the saguaro . I had no idea that Saguaro had those wood inner part. Makes sense tho since yes these can get huge and heavy. Good luck on your project.
There might be enough room to angle the top part forward like Pacer Poles which are meant to be much better ergonomically...
Here's a video with some ideas. I remember seeing another, with some cool features added to the walking staff, but can't seem to find it...