dragnlaw,
Years ago I tried out that Autumn Frost squash, since it was a moschata, which is all I can grow here. It was a hybrid - a butternut crossed with something else, giving that pumpkin shape. Same color as a butternut, when mature. About 3-4 lbs, one got to 5.5 lbs. It took longer to mature than many I've tried, so I didn't get the 8-10 squash per plant given in the description. It also didn't store for as long as some, but better than some, as well. And not as much flesh in it as most butternuts, with those large necks. A lot of seeds, to use in place of pumpkin seeds!
I just noticed some of my squash finally starting up, instead of just those male blossoms! Only had 2, before now, that are pretty much ready to pick, yet not another on the 7 plants until now! Of course, there is no way to see all of them, with all those leaves! I almost gave up on trying to control those vines. I only have 2 plants of my favorite Polaris butternut, plus 3 Yuxi and 2 South Anna butternuts, both new to me. Polaris is one of the longest storing varieties (I still have 5 from last season in the basement!), plus a good producer, and good disease resistance, but it is a hybrid, so I can't save the seeds.