I finally managed to finish my Megillat Shir Hashirim, which took some 4 months to write. I had a very tough time writing this one since the klaf was quite bad, specially in the very first column, and this dragged the process more since I couldn't write as fast as usual.
This highlights how important it is to look for top-quality klaf; if you can't get it, wait until you find a good one. I couldn't erase mistakes properly and I even did the capital sin of a Sofer - I made a small hole while trying to correct something. It doesn't matter so much since I managed to "place it" just in between two words - look in the last line of the forth column.
Additionally, I used a computerized Tikkun (from which I copy the Megilla layout) which was awful - I was forced to stretch and squash words in almost every line. Now I know: only buy copies of hand-written Tikkunim.
But Shir Hashirim is fun to write, since I can use it every week (there's a minhag of reciting it every Shabbat-eve) and it's shorter than Megillat Esther. Now my next project is to write a large Mezuza - stay tuned!