Tins,
You are correct, full rich is the only place to be in the climb. I have just run the dyno data and you should have about 34GPH at your 38/2400 setting. Leave it full rich and that is where it should stay for takeoff, climb and any time you take the whip out.
Some tips for the cruise, try 32-33" /2400 and no more than 17GPH. At 30" about 15.5GPH. This will be around 80dF LOP.
Some folk stress out too much about TIT, so if you would rather set up 30"/2400 and then 80dF LOP then add back 2-3" then do it that way. The FCU will look after the rest.
If you want to see an hour or so of various stuff on the dyno, and Georges famous words with a nasty climb power setting where he says frankly this is not good for the engine, shortly followed by but it is consistent with the POH recommendations
all the while you are watching the pressure traces
just drop me a line.
The banter machine is not a TKR machine?