Hi Pat
Congratulations on the scope and First Light!. I threw the locking knobs away once I had upgraded to bobs knobs on my 12". The springs that come in the GSO Dob are a little weak for my liking but if you get a complete sets of knobs and spring from Bobs Knobs, they are strong enough to support the mirror without locking screws.
With the finder, align it in daylight first using a distant object (being careful to not point it anywhere near the sun!) then it should only need tweaking at night.
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