From Beaverton Ontario to Collingwood Ontario the TT route was reasonably accurate (Saturday). I assumed the return trip from Collingwood to Beaverton (Wednesday) would be the reverse. Not a chance. The TT took us to Bayfield St, Barrie which was a busy nightmare of fast food outlets, malls, drive-ins and traffic. The TT then sent us 40 km north on Highway 400/11 to Orillia - then it regained its sanity. It's our fault for not rechecking the route before leaving. No settings, maps etc. on the 2535 were changed. I can't understand TT's spurious routing.