I'm looking to replace my underperforming 220mm (made myself!) with something which will fit the OTA/Mount I have, hence the specifications (sorry Asi, if I had an EQ6 I'd think about it).
$500 gets a Bintel or GSO mirror ($700-$800 gets you the entire dob with eyepieces), but the mirror is of uncertain pedigree - And yes I do know that some of these mirrors turn out very nice indeed, but some of course don't so I'm not yet sure if I want to take the chance.
Discovery Optics in the US will guarantee the figure and get great reviews but this costs money - US$659 plus shipping (and a tad fast for my liking at f4.5).
It's all too dificult
