Interface Failings of the Cateye Enduro 8

Just got one of these and have had a bit of a play with it. Interface is iffy. I realise there's only so much you can do with two buttons and a couple of rows of digits, but you can do better than this.

• The unit supports both mph and km/h, which is good, but you can only switch between them during the initial setup; if you want to switch, you have to do a factory reset. Poor.
• The unit has a clock, which can work in both 12- and 24-hour mode, but the setting is tied to the speed units - if you're in mph, you get a 12-hour clock, and if you're in km/h, you get 24. Retarded.
• Not really an interface problem, but the manual, such as it is, is a crime. The installation instructions especially, which are only in diagram form, and not very clear ones. I still haven't figured out what it's trying to say about routing the cable down from the bars.
• The interface works by cycling through a number of modes - average speed, maximum speed, odometer, etc; this is fine and good. However, for no particularly good reason, the clock is not one of the normal modes - to get to it, you have to go the trip time mode and hold down the mode button for two seconds. Why? No good reason.
• The display consists of a row of big digits at the top, and a smaller row beneath. Normally, the big digits show current speed, and the small digits show the value of whatever mode you're in. However, you can swap these, using a magic button chord; you get the mode value at the top, and the speed at the bottom. However, you can, it seems, only do this in some modes - trip time, maximum speed and average speed, but not trip distance. Arbitrary and unhelpful. Also, the way it's done is a bit odd - you flip the rows on a per-mode basis, so if you flip the rows for, say, average speed, then cycle round to maximum speed, that looks normal. Can't figure out if this is right or not.