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Yes, you will need to mark the centre of your mirror to collimate it with a collimation cap or cheshire...most folks do a "spot" (some already come that way).
I read somewhere on the net about someone who used a triangle (instead of a circle) aligned to the collimation screws...they claim it helped them speed up the process (interesting idea).
There are several opinions about the best way to mark the centre of your mirror, mine came marked so I don't have an opinion on this.
I did get a chesire collimating eyepiece (Orion). I highly recommend it as it works a treat for me...
Some people will recommend a laser collimation tool but, for me a simple solution is better. It does not get much more simple than no moving parts and no batteries.
The final check is a star test...
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