I have done this several times but never more than 3 single sides. Anything longer tgan 5 I would probably attempt to edit down a bit. I will either print it off and hand to T at the beginning of session or email it from the waiting room and ask T to print off for me if for some reason I was unable to. The only times I would email a day before session is when the letter involved something that the T did to me so that he would have prior warning and an opportunity to think about how he wanted to respond. Otherwise I think of it the same as subject matter that I actually could be saying directly to T on session (but for whatever reason I cannot or prefer not to speak about in person).

My T always thanks me for sharing my thoughts this way and keeps the writings for my file. These are usually very productive sessions as he reads through it in session, responding as he goes.