I tried getting into my BA bag last night without the pad.
Houdini would have had a hard time
I just tried it now by getting 90% into the bag standing up and leaving my left arm loose.
Worked very well and with a bit of practice will be really easy.
I like it better than a TQ so far, the coverage between the UQ and the side of the bag are good and because of bad joints I can squirm around all I need with no cold spots.
Makes me wonder about how a Wall Creeper would do.