So I have about 60 shoulder mounts to do this Year - it seems like 2/3 picked my Semi-upright OTS over the other OTS poses. Unfortunately that pose has the least number of sizes. Based on my observations, the OTS forms are a little lower than many others and their semi-upright is same height as most semi-sneaks(the McKenzie 6900 semi-sneak that I have is the same height)Looking through my catalogues, the Gene Smith forms in Semi sneak look real close to the OTS Semi-upright. Looking for opinions. I love mounting on OTS whenever possible, I also don't like ordering from anywhere that doesn't have SpeeDee shipping. Again, looking for advice.