Shorter Aneros

I have found that the Progasm feels very good and full, but it doesn’t move as much as my Trident. They both feel good in different ways, but Trident seems to usually work better and gives me more of a stroking feeling. One thing with the Trident though is I think it is also a little on the long side to hit my prostate effectively. It feels better if I pull it out just a bit, but then it has a tendency to pop out if I don’t hold it in. Any recommendation for a model that is a little shorter? Something a bit more nimble might also help, but just being shorter will probably help with that.