Granted, Flightaware gave me a brand new site number (which means I start again from day 1, which is unfair
For Beginners - How to Get Back Existing Station Number in A Fresh Install
Thanks for this tip about former station numbers. Now back on my former station number 
As for the Pi2+ mlat power issue. I have put a fan blowing cold air onto the Pi and separated the power supply of the Pi and Amp on to separate plugs and seems to be running smoothly at present.
I’ll watch it for the next day or so adding a “ping” cron job into the Pi and I might upgrade to a Pi3+ if it’s running out of CPU.
Thanks again