I play indoor soccer and I used to use in my previous Garmin 235 the "Indoor Run" sport feature which seemed to be relatively accurate. In the new Garmin 245 I only can select Treadmill or Indoor Walk - the latter is extremely inaccurate, I would say only 30% of the actual distance. Do you know if it is possible to have something similar to the 235/Indoor Run which I understood used the accelerometer? or is there a trick to calibrate the "indoor walk" ? Thanks!!