Thanks for the thoughts Peter.
I am going to order a mount and pads shortly .. early christmas present to myself. One question is, can you collimate a newer scope? I don't see any reason why not but figured as I had your attention ....
I have read and re read your 'how to' on doing the mounts and believe I am capable of doing myself. Worst case scenario is I get cold feet and send everything off. I actually don't know anyone with a genuine No4t or L42 so I would have to wing it. As long as no one minds me asking more dumb questions of course !
Many thanks for everyone's input.