Has anybody looked at/fitted the Defi Blue Racer series of gauges?

They were designed for the US market so are in Imperial only. But they do not require a control unit and are available in 52mm (unlike the BF series), which is handy for classics as most pods only come in 52mm.

Companies like Gruppe-S seem to stock them... Link for ease... Defi Meters (http://www.gruppe-s.com/Defi/defimeter.htm)

Just wondered if anybody has fitted them and their verdict.

Many thanks
Ross