Another thing to consider is that the U360 rotary upgrade is an optical (non-clicky) control, not a mechanical (clicky) control.
AFAIK only five games used an optical rotary stick -- Caliber .50, Exterminator, Fighting Soccer, Touchdown Fever, and Touchdown Fever II.
Users have reported that not having the "clicky" detents makes it harder to reliably control the mechanical rotary stick games like Ikari Warriors.
Scott