Stone, someone cut the rear tube too short, (looks like they matched the front). It should reach the next set of ribs, as you can see from the doubler.

Even so, the original tubes were all slightly too long and would deform or break apart the ribs when the stabs were forced in to meet the fuse on installation. Only required slight trimming to fit.

I would second the previous post and recommend working on getting a solid elevator control setup. Most often that means mounting the servo in the tail so the linkage is short as possible. Even C/F tubes over the entire original length did not work that well and I strongly believe that is what allowed flutter to start and destroy the tails.