Well I can give you me experiences on this matter. And just for clarification... I'm a non-op transsexual woman who started her hormone treatment in Sep. '09 and was subsequently taken off of them in Feb. '11 (my old doc was a ass), and just got back on them the beginning of June '11....
I was on 1 ml of delestrogen every two weeks (injected) and 100mg of spironolactone twice daily (after 6 months I cut that in half due to it causing me to be very dehydrated).
All that's added to my regiment is 100mg of prometrium (witch is a micronized progesterone)

Now what I mean by non-op.... is I don't plan on having srs (though I may change my mind in the future, you never know).
My reasoning for this is.... I have no problem with my penis. I can and still do get pleasure from using it (though I only use it on girls ).

For the year and a half I was on hormones I didn't have any shrinkage what so ever. My penis can still get fully erect and is the same length and girth it was before hormones (I know I measured ).
I think the reason for this is because I still masturbate on a fairly regular basis.... though not as often or with the same need I felt before hormones.

The major differences I've noticed are.... I can't really get fully erect to the same things I used to before hormones. Meaning porn isn't as satisfying as it used to be.
I've found for me to be fully erect requires the prescience of another person (who I'm attracted to obviously ). And when that is the case... my erection doesn't go down (as long as I stay aroused).
I've had sexual encounters that have lasted up to and beyond 4 hours, the hole time I'm fully erect. Though massaging of my penis can be painful during that time if no lube is used.

After the first month on hormones I stopped ejaculation completely. When I came.... no secretions came out. And my testes had shrunk to about a 1/4 of the size they were before hormones.

I'm devolving this information of my own experiences to give a better understanding of how hormones effect different people.
I knew of all the possible ramifications of hormone treatment on a male body before I transitioned. But I knew that transition is right for me.

What I'm trying to say is everybody is different. And there for hormones will effect everyone differently. You won't know how it effects you till you find out for yourself first hand.
And if you feel that there are side effects of the hormone treatment that you feel is unexceptionable.... Than I suggest you don't go through with it.


K... So I know my writing isn't very structured... It's hard for me to be able to express what I'm trying to say through the written word.... I'm much better saying it out loud.
So if you confused with what ever I've said here... feel free to ask for clarification... and I'll do my best to help you out. :D

P.S. If it wasn't for spell check... some of you would really dislike my posts

Miranda