When I open the widget there are no saved trails. I can only record a new trail. Any idea's? And I have 4 RTG's so i am ok on power. Yes Mk 7.... 2,3,4 were not that different besides adding ballest. Mk5 got the claw/ trailer working well, Mk6 added aero, Mk7 was to make it less ugly and lower drag. Currently I'm dreaming of a quarter or half size structural panel that doesn't have the flat section that sticks out. (See "side skirts" on Banjomobile Mk7 above.)