Yes, that's where foamies break. Fortunately, the "X" cross-section lends itself to laying a piece of CF tube into the intersection of the "X". Do this after the fuse is repaired with foam-safe CA and is as straight as you can get it. The length of the CF can be as short as 4 inches (10 cm) or as long as the fuse, depending on how paranoid you are about adding weight. Diameter can be as small as 0.050" (1.5 mm) solid rod or, on something very light like the Tensor, probably no bigger than 1/8" (3mm) hollow tube. You can get good adhesion and a bit of a fillet around the CF by using either medium-viscosity CA or a tacky water-based glue like "RC56".

A foamie isn't fully test-flown until it's been broken in half a few times. [8D]