Parking is OK on mine, although I don't use it that often. There's not much to be worried about with firmware updates, make sure you have a stable source of battery power to the LX (powertank), I use a fully charged laptop with the screensaver turned off running from the mains so that if the power fails the d/l continues on battery backup. If you do a firmware update it's necessary to recalibrate and retrain the drives.
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