Have the triplet 127mm and found it to an almost perfect scope. Flat field, sharp and no CA.
Especially with the Moonlight focuser - make sure you get one with the hand figured Japanese glass and not the machine figured chinese glass.
http://www.myastroshop.com.au/produc...asp?id=MAS-430
http://www.myastroshop.com.au/guides/prostar-gp2.htm
and one night of astrophotos taken with this scope and a 20D here
http://www.iceinspace.com.au/forum/s...ighlight=night
A review is here
http://www.myastroshop.com.au/guides...127-review.pdf
In my opinion a great scope worth the money and works well with my HEQ5 Pro