I used to run a pair of sparco evo xl's on customised bride rails. I'm 5'9" with (at the time) a 40" waist. Will try and find some pics but it was over 5yrs ago now.
Did about 1200 miles in a week on a holiday including a trackday @
http://www.oultonpark.co.uk/ - seats were brilliant. Really went a long way to hide the shitty roads over here