That's what I'm using and yes it feels a like my arms are stretched and sometimes when I land I feel like I'm going to hit my face on it :/
http://www.tredz.co.uk/.System-EX-Stem-31-8_18480.htm
Hi. I'm currently running a zoo pitbull (long frame) and I'm about 5foot 7inch tall. What stem would suit me best? The one I'm using at the moment is super long with a really high rise.