Roger, that's pretty good if you can get sim time for $30...I'd hate to sink more cash into a sim than that.
If you can back up a trailer by remembering the basic rule of turning the wheel into the mirror that the trailer is veering into [to keep it straight], then you will learn quickly that you move the stick on your radio to the lowest wing panel to keep your plane flying straight [with wings level] as it comes back to you.