What scope recommendations are there for the 10-22 take down? I want one that can stay mounted to the receiver when it gets put back in the carry bag. Is the Bug Buster the way to go? Or is it better to just get a regular scope with the quick disconnect rings and forget about it staying on the gun when in the bag? Also, should I replace the mounting rail that comes with the 10-22? It doesn't seem too scope friendly.