I understand what you mean. On my 33 mile commute to work, I once used a competitor product which made a great fuss about alerting to speed trap sites. It was continuously alerting to different, overlapping alert zones for 26 of the 33 miles. After several "expletives deleted," at mile 28 it went spinning out the window.
If you have nothing else, (no RD, no jammer) then OK, GPS based reminders for mobile trap sites are better than nothing. They are acceptable in Europe because most countries make radar detectors illegal. It may be attractive in Virginia but I can't really see "speed trap site" alerts catching on in a big way anywhere else in the US. Using GPS location to try to warn of moving targets like a police car, has a number of obvious limitations. We list them here:
Understanding the technology: GPS-v-Mobile Traps
The advice I always give is that you serious about this stuff, you have to pick the right tool for the job; a GPS detector for camera alerts and safety reminders, a radar detector and laser jammer for mobile traps. That's why we built the interfaces in the first place, to let everything work together as one. And it's also the reason why we believe you should choose our GPS detectors over anyone else's.
About the Trinity Database, we do not use any of those public websites for data collection because we don't want to devalue the integrity or dilute the quality of the database. We don't add in any data unless it verified by one of our trusted spotters, who actually know what they are looking for (and talking about.)
Plus you always have the option on Cheetah detectors to switch off the alerts for "Common Mobile Sites." When you have a detector and jammer like yours, we recommend you switch off the mobile alerts anyway.