There was a time where I used to go on and off spiro because I really saw no difference..
My T lvls usually stay around 60 if I'm off of spiro.. It isn't a big deal for me..
But I used to go on and off because I felt like when I was on spiro I would get alot of water weight...
I'm on my spiro religiously now and it's okay, I figured it better to be safe than sorry..
As for sexual differences, The orgasms off spiro are so much better and powerful..
When I'm taking my spiro.. They are kind of weak and unsatisfying..