Can't comment on the handset as I haven't really used one, just EQDir cable. LCD screens might get very slow in cold but haven't seen any break so far. As for dew heaters it's most down to pure laziness, I originally didn't install them, noticed I didn't seem to need them in the observatory so to save weight on the HEQ5 I left them off. Now with EQ8 weight isn't an issue anymore, but haven't bothered. With refractor, SCT or similar closed OTA or without shelter the case would probably be different. Then again the worst humidity issues I've had have been not in properly cold weather but just above freezing in the autumn.

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