Russell, with the 'Cheshire', it takes 2 people to collimate 'easily'. If you try it yourself, you'll be up & down all night. Reason = image shift/earth rotation etc etc.
The laser collimators are useable by 1 person. The beam is reflected back to a 45deg surface that you can see from the base/bottom of the t'scope. So you can see which way to adjust the primary mirror without having to go to the E/Pc. Then do a star test to finalise. (may need 2 people here).
One thing tho., make sure the laser collimator itself is collimated. ie; the beam is coming out 'on axis'.
See attached......
HTH a bit .......
L.