Here is some vids i did a while back on a 360 development kit. Me and my friends playing with RTH. This function is built into the xbox 360 development kits hardware for the ability to debug 360 code using visual studios, And also allows memory to be poked while launching a xex. This can now be done to a jtag by patching your freeboot with the latest patches and installing dashlaunch 1.0.

RTH allows you to swap tags or mod tags in game.