Have read some good reports on Bob's knobs, to aid in easier collimation. Too dear in Aus, but cheaper from USA.
Are they worth the $$
I have a 10" GSO Dob, which I believe uses the knobs made for 10" Meade Lightbridge.
Is it better to get knobs for both the primary and secondary mirrors?
Thanks
http://www.astronomics.com/main/prod...uct_id/BKLB10P