I'm working on some prototypes for twenty award displays I'll be making. This is 3/4" kiln dried walnut and all the pieces are being cut by a CNC for precision assembly. The only joint where the grain direction doesn't match is the circled joint which is just under 7". I used Titebond no-run no-drip glue. I called Titebond and they said their glues do have a small amount of flex and that a 7" joint should probably be okay. These displays will be in a modern office building, so refrigerated air year round, and a very dry climate (Denver).
I'm wondering if you all think a glue a joint this size with opposing grain directions is safe. I know I could just glue a couple inches in the middle but I don't want gaps at the ends. I suspect the hypotenuse joint should be fine even though it's not quite parallel grain directions. I know glued M&Ts are also opposing grain, but usually not this long. Is there a more flexible adhesive that would still be very strong? Thanks in advance!