Spent a few hours today looking at potential avionic component layouts. If I use the MGL EFIS, most of the mounting positions are already in place, todays exercise is for the Garmin option. Either way I'll be using my Trig transponder. An MGL SP12 GPS will allow ADSB out & a PowerFlarm Core ADSB in (+FLARM, Mode C & S returns), I produced a standoff for those 2 units. Tomorrow I hope to finalise this option & install the required hardware on rib 3.