I have tried Millet from 2 sources and it makes a big difference.
I used the 130, 140, 150 deg mash schedule for the Pale millet from Grouse Malting Co.
The only way I could get it to convert is to add Sweet Potato at about 1 lb, some amalyse and 1/4 lbs of 6 row for every 5 lbs Millet malt...