From everything I have ever heard of the LXD 55, I wouldn't touch one, but thats only my opinion.
I would be looking at something like the Losmandy GM-8, HEQ 5 or the HEQ 5 Pro, here is a review of that mount:
http://www.iceinspace.com.au/index.p...44,288,0,0,1,0
It is the old saying, you get what you pay for. I am a firm believer that you should get the best possible mount you can afford, it will save you a lot of frustration in the end.
Cheers
JohnG