Thanks interruptor for your kind words and encouragement! It means a lot, coming from you. This forum is a great place to improve man's dubwise skills.
I can't remember exactly how I made the pitched echoes.
To avoid hogging this board, from now on I'm releasing all my tracks on my blog:
http://www.sultanoffedaayin.blogspot.com/
There's a new one there already, called 'Najaf', and a chance to leave comments where suggestions and feedback by dub listener can be left.