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I use both. I'll check the focuser to ensure no freeplay in it's movement. Followed by the Cheshire, then the laser. When all is done, I use a pocket mirror alongside the secondary to see the laser beam return to it's source and form a red "donut" around the exit hole. Then a final check with the cheshire. It's worthwhile to collimate your laser collimater every so often, cause they DO go out of whack!!!
A good cheshire will cost about $60, a Laser about $80+.
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