Warren. I actually switched over to Purina Gold and Green Nutra pellets just in the past three weeks. It was a dicision I made after posts by you concerning the subject and a lot of internet investigation concerning this. Since it was breeding season when I switched over, it was a little dicey, and I had to do it with care to make sure the babies got fed well.
The switch was difficult due to there being babies and the adult birds not taking to it well at first. Ideally I could have just let the birds get real hungry and it would have happened easier. But I had to switch over gradually instead.
All went well and now the birds eat up the pellets just like grain. Heck, better than grain because with the grain the birds usually picked out what they liked and left those little black things in the feed (forgive my ignorance but I don't know one seed from another).
I feed the 100% Green pellets to my breeders right now, and 100% of the Gold to my old bird team as they are just being held over for the winter. I will start the mixing when appropriate.
The pellets were not that much more expensive, but I do have to order it in advance, whereas the grain was available immediately whenever I wanted to stop by and get it.
I have decided to continue to offer red grit to my birds as they like it and who knows what they will pick up off the ground in the way of seeds anyway. Even though with the pellets it states that grit is not necessary for them. I also occasionally use spanish peanuts as a treat, so grit will probably be necessary for that.
I also am going to offer seed occasionally, as a treat. To prepare the birds for situations described above, during "hold overs" or whatever.
So. In a nutshell. If I fail to win any races this coming season, it is your fault Warren. Certainly not mine.
P.S. I left the canister of pellets open once, and my horse got into it and had a real good time. She loved it. It took all of my weight just to get her off of it (she is a large miniature horse).

I even had my female German Shepherd trying to eat it.
I know it sounds like I don't feed my animals well. But I do.