I had the 245 for like 4 years and used Training > Set a Target for basically every single run I did. Once I hit the target distance the watch would buzz, I'd get a summary and I'd hit the stop button - activity stopped. Simple right? I upgraded to the 255 for Christmas and while I love the hardware I have no idea what the user experience is supposed to be now. When I use Training > Set a Target, the stop button does not work while the summary screen is showing. Is this intended or am I missing something? I have to hit the back button to get off of the summary screen while running and then I can hit stop. Or I have to wait 5-10 seconds before the summary screen goes away and then I can stop it but both seem a bit.... stupid to say the least. The stop button should always stop the activity, no? Am I missing a setting or can I turn off the summary screen on the 255?