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dunno mate, i would say seeing.
The seeing has probably been too crap to collimate on the moons of Jupiter. Chris go in Cebu Phillipines collimates on the moons first before he fires up the runs on his c11.
There is no way i could collimate on a moon at f38.5 with my dob, but how well would it work to tweak th collimation on the c9.25 or the super meade 14"?
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