I have a human PC set to 55 for height, but she keeps rendering as average height. I had a DM adjust it, and it worked while I was logged in but put her back to avenge when I relogged. I don't have a screen shot of the DM fix, but she was about shoulder height to the Morninglord priestess at that time. Here is a screen after I relogged, and a screen of my character info height section.*
Player: fenixphire
PC: Merrigold
*(Known issue; Reporting per MAB)