Yeah, I have spoken to both Murray and Josh Cootes on two separate occasions. The thing that impressed me about both conversations they were happy to talk about suspension in general and not just their products. I spoke to Murray for about 20 minutes and after ending the chat I was thinking I would go with MCA. Not because they are the best product (there is no such thing) but I like the fact that I/you can talk to the people who make/design the units. The fact that they are in Australia is a bonus.
You might like to read this thread I posted on the subject (or you might not lol):
http://www.ft86club.com/forums/showthread.php?t=36348