check the ferrules,the japanise rods were known for the glue to let go, and check the fit of the male and female,the crome plated brass that was used is noted for cracking,the tapers that the rods were made on leave somthing to be desiered, so dont judge all bamboo by this one,if you want to fix it up go for it,if you have any questions on redoing it let me know,steve