Thank you all for your advise, I had pretty much reached the conclusion I should get the geometry professionally checked especially when I live so close to BRT anyway.  Am defiantly in it for the long hall, I am absolutely loving doing this with my son even though it can be a bit frustrating and costly at times.  scouting  the web sites for a set of second hand lasers now.
  Can I just say my experience of the site so far has been very positive, most people seemingly wanting to help.  I guess we were all newbies once upon a time.
  We will be joining Rissington at the end of the month with a view to my lad taking his ARKS test there beginning of July, if there are any other cadet dads racing the Comers there I would be delighted to hear from them.
  Once again many thanks, Paul
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