Thanks for all the good feedback, I am going out to Ron's this weekend coming and hope to do some beter collimation with him (oh by the way Ron, if your reading this, can you help me please?) as he has years of dobby experience and must be an old hand at it by now. One thing to consider for dust is, when using it on or near ground level, lay down a poly tarp first, that way the fan wont blow the dust all over your mirror. I have put in about 6 hours observing time so far and am blown away by the aperture, imagine how good it will be when correctly aligned. Even my wife said (while viewing tuc47) "Wow, now that is pretty, I understand why you wanted it now." And for her, this comment is impressive, she just doesnt get much from Astronomy.