Well, the rod I wanted to test is 28mm in diam. and about 1,5mm thick. It's the first part of a big telescopic fishing rod. It feels quite stiff. The first part of the rod was designed to bend very little and the top sections very flexible. It's a long way till spring but I'll give a shot then. Maybe it's just a stupid ideea and it will brake, but the thing is sitting in the garage and I don't see no use for it anymore.