Just adding in my own thread here. And I will ask what I think is going to be my new lbs about this as well. Some things I have done, and some things I read about on BikeForums of other peeps having some of my same issues...
1) I don't think it is the battery (though I would replace it if switched over)... I actually took the battery out of the head unit, and put in back in to reset it with my owner's manual instructions from Shimano
2) I have always made sure the front wheel magnet is NOT lined up with the head unit and/or sensors (when bike is in stored/parked)... which the org lbs told me is a cause of the unit not going automatically to sleep... as it thinks it's still "at work" lined up, and thus will just drain out
3) I do know to keep the front wheel magnet sensor, and magnet itself within one dime coin's width to ensure it is picking up a read
4) the odometer on total miles works--regardless of the unit dieing out mid ride on that short term recording keeping-- the od will accumulate--thus sometimes I just try to remember to write the mile # down before leaving home, and subtract when I get back to get my total distance on that trip... IF I remember that is
5) I do not ride on the "tops", or since my bike is too big, on the hoods either really... I'm normally a hand width back from hoods (how too big my reach is for me overall)... this point is that some riders on BikeForums with noteable large hands commented they would accidently bump the shift buttons and re-set themselves mid-ride... thus losing data but prematurely turing off the FD (plus the lead wires run under the wraps on the bar tops)
6) meh.. it seems to switch out ok between the functions... but I have to push it hard
7) I have not took apart the hoods and contact cleaned the sensors/buttons themselves... that was a dx tip on BikeForums
8) another lbs mechanic on BF said he once made a shim out of masking tape inserted internally to press the sensor closer to the external button surface for a contact problem
Errr... that is all I can think of for now. *sigh* even it I don't solve my issues, maybe someone else who does a search can use one of the above to dx their own issues anyway.



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". So, "no" fancy techy toys don't make the ride (but, they can be helpful tools).
how steep was that sucker anyways???... OF COURSE holding the grade against my hard core favorite standard of "the puke factor".
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