I also have a pine that I'd like to ID. I'd love to get a couple more like it. I've used a couple keys without success. I've tried a number of times to raise them from seed but the seeds are always hollow and sterile. I got it from a nursery and have concluded that it's a sterile hybrid of some kind, kind of like a triploid watermelon.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.