I checked it, in theory that's indeed faster, but the bank speed of a script is 5 times as slow as he banks in the clip...
Runepouch is usefull if you want to use magic imbue to train magic, but handleing the magic imbue spel while running and stuff is a pain in the ass.
Honestly the exp/h in the script won't be higher if you going to CW Maybe legit it is faster because the banking speed is quicker
Khalesi