I just went through my first lot change w/869. I was a little befuddled at first but then just worked up a different load.
I use it in a 338 RUM w/300 SMKs and get 2700+ fps and great accuracy.
I also use it with the 270 AM and 169/196 grain bullets and get great accuracy and velocity.
I'm even going to try it in a 270 Win w/150 and 169gr bullets.
I have no complaints, after I got through the lot change, but that was a personal foot in mouth thing.....