re: lubing the sled...no way you are going to get a finger in to do this...unless you remove a cover. see my post #2.

re: connections...not sure how zwift would declare a dropped connection with ant. but ant sends updates every ~1/4 second for all devices like power, speed, hrm. they all vary but not by very much. that means that eventually two transmitters will collide their data and the receiver will receive neither. but this should self heal after a few packets. i' confident that zwift is tolerant to this. bluetooth i am not sure. this is why i ask about computer or phone. bluetooth or ant the freq is ~2.4Ghz. same as a lot of stuff (think microwave oven) so they can all interfere causing dropouts like you describe. but if this is each and every time it does sound like either the transmitter or teh power meter portion of the trainer.