Hello all - I have a Lakland Skyline 44-60 fretless with GHS flats on it, an the Hipshot licensed tuners will not stay in tune. Every day they go close to 1/4 tone flat. 
It's set up well and plays like butter but the dang thing will not stay in tune. Could it be improperly wound strings? Something else? Your thoughts and comments will be appreciated.

It's set up well and plays like butter but the dang thing will not stay in tune. Could it be improperly wound strings? Something else? Your thoughts and comments will be appreciated.