And I say I recommend wood. There a lot of "Survival staffs" out there and a lot of them are well thought out and very good at their job. BUT what if for some reason you lost it or had to abandon it and it was found by "the bad guys". That would just alert them that you MAY not be to far away.

If you’re not Paranoid, You’re
not paying attention
Be a Sheepdog
JYD#105