i am looking for my 1st radar detector. i have only had my license for a year but i know how i drive and i feel its time to prevent future tickets. i dont usually go more than 10-15 mph over the speed limit so i dont need top of the line. i narrowed my search down to 4 detectors, all whistlers: 1773, xtr 325, xtr 520, and the xtr 560. the prices are somewhat similar so that is not an issue, i was just wondering if anyone had an opinion on which one i should go with. thanks.