Rod 1 your probally right I was told that the 328 doesn't have ADS-B capability but also if and when that ever comes in for europe could be anyones guess. If you want to play it safe the Garmin 330 does it all. Don't think there's even that much difference in price I payed £1500 for the 328 fitted and I think the 330 was another £300. I did look at the trig and I'm sure it performs well but maybe it's me but it just has that A level electronics class look.