[Robert_T]

Originally Posted by davidpretorius

i am reserving my right to a reply once paul haese starts smacking around his 18" SDM.

In my mind (with no real hard evidence) c14 and c9.25 were always the picks for planetary, but the CHris Go in cebu is producing fantastic stuff.

Paul once explained the difference between c9.25 and c11.

My gut feel is that if we can sort cooling issues out with big mirrors, then 16" and 18" dobs or SDM's may be the go????

Thanks Davo - scuse my ignorance but what's a what's an SDM