It's probably not critical that you get it off right away. As long as it doesn't constrict the arm, and it doesn't sound like it does. If it doesn't come off the after one round in the deli cup I would leave it be until the next shed. Maybe mist a little bit extra until then, but not to the point that it is always wet in the enclosure (you still want a wet/dry cycle). It should come off with the next shed with good humidity.