Wood tripod, sticky sliding legs

[Jac@stafford.net]

I have a Berlebach wooden tripod that is very weather-worn. I do not mind the bleached-out and gray stained wood. The issue is that it has become too difficult to slide the legs in and out.

I hope there is a wax I can use on the inside surface of the legs where they slide against each other. Any recommendations? Or would an acrylic spray finish be better?

This is new ground for me and I don’t want to make the situation worse.

Thank you,
Jac