I've used a downhill ski pole in the past. Take the basket off and add a cord to hang around your body.
I stopped using it for several reasons. First is the problem of having too many things to carry that Art mentioned. I also tended to end up with my line wrapped around the pole after every fifth or sixth cast. The final reason I stopped using it was that it gave me a sense of false security and I would wade into locations which I should not.
Having a staff that was telescopic, or snapped together would help with the first & second problems, but I worry more about being over confident on where I can wade.
I never tried the rubber tip so I can't comment on that.