Ultra filter elements are on the heavy side, with steel mesh backing, 2 layer media, and steel end caps. When combined with a not very strong can & leaf spring, it doesn't take much of a drop to get loose. The Ultras I've cut appear to have the same leaf spring as the PH/Extra Guards and even the Fram Core filters, plus the bypass valve in them removes metal & weakens them even further. I've never heard of an EG rattling.