After reading the DCR threads, I'm not even considering the 530 with it's bad back buttons. So I'm considering 830. Someone posted that if they enable Galileo on the 830 their GPS logging goes all over the place and never self corrects(every few rides). They posted a ride where the return line was several km off. I was hoping to ise Galileo to accurately map new trails. The 830 uses a new Sony GPS chip from what I've read. Does anyone know if Garmin is looking into this? If it's a non-fixable hardware issue I'm going with Wahoo since I've sold my 1030.