I don't want to act like I am all knowing. I read the Brushpile thread twice on the old place. The second time I took notes. Brad's knowledge is all knowing when it comes to questions like this. The Brushpile is a unique piece of deer habitat.
Brad explained what would be early. His explanation of how to plant cuttings was well - I just had to see if it would work. It did!
He told me and others what would bear the fastest. I took the plunge and planted AC and Sequins.
I was very excited to see it play out as said. I have invested a great deal of time and effort in getting "Chinese Chestnuts" planted on our farm. I used them to created tree lines. I expect some of them to bear fast compared to other settings. I put down fabric, used moisture mizer, watered them, and planted sufficiently numbers that the fast ones will lead the way.
I believe Sawtooth to be a good tree for productivity and attraction. You didn't ask it this way - but pear trees are fast to produce. As they say - even if you have a black thumb - you can grow a pear tree. I hope to learn from Native Hunter's example and get my pear trees established so that I they drop at different times and create a favorable soft mast attraction calendar.
But it started when I read the Brushpile thread and then I read it with my eyes open and focus on what will pan out quick.