loop_start is the most obvious entry point for adding content above The_Loop. Unfortunately, as this portion of the code is in the loop, this prevents me from actually using another loop. (Believe me, I tried.)
As it is fairly common to use multiple loops (wordpress even has a guide!) this seems like an obvious opportunity for improvement.
We simply need another action (pre_loop?) or something along those lines.
Any ideas? Is there something I'm not understanding?