Hey, I recently reduced my dose from 30mg to 15mg. I was on 15mg for 2 years before I slowly withdrew from it over the space of a year.
(I did this by going from taking it every night to every other night for a month, then every 3 nights for 3 months, then every 4 nights for 4 months) then I stopped completely. I had no withdrawal symptoms at all reducing the dose, until I stopped completely, then I developed itchy skin for about 3 weeks. I'm telling you this because a lot of people withdraw by reducing the dose (from 15, to 12, to 7 etc) but this is just another way to think about doing it :-)
Anyway about 3 months later my depression came back. I was on 15mg for 2 months then upped the dose to 30mg. I was on that for 6 months & decided that I wanted to reduce the dose because I was constantly exhausted!
So I went to the doctor who at first told me to just start taking the 15mg again, then when I told her I still had loads of 30mg pills left, she told me to alternate for a week & then take 15mg only.
When I got home, I decided to just take the 15mg instead of alternating- I didn't see the point in playing around with the doses, confusing my body. And I figured that if I had a hard time, Then I could alternate the doses.
Like you, I searched for people's experiences at reducing from 30mg to 15mg- I couldn't really find much & the stuff that I did find was pretty off putting.
I'm glad to say that I haven't had any withdrawal symptoms at all. I still have an appetite & I can still sleep. I sort of tortured myself because I've been waiting for the bad side effects but they haven't come. I've read that sometimes withdrawal can be delayed, but it's been 4 weeks today since I've been taking 15mg again so I'm hoping that I'm past it- you never know though.
Some people say that it's best to take it slowly & others say that going from 30mg to 15mg is easy and that it's going from smaller doses to minute doses which are the most difficult.
My suggestion to you is that you just start taking the 15mg and then if you can't handle that start alternating. Make sure you speak to your doctor because they'll know best and make sure you do what's best for you!
Sorry for my long answer, but I hope it answers all of your questions.
Hope however you decide to do it that it's easy for you!
Lots of love x