NavList:

I just needed 'pemission'.  I, indeed, wanted to emulate the graceful motion I've seen in the videos. Presetting makes a lot of sense and I have indeed been sucessful using this rather obvious technique. And the shadow on the shirt?  I use that all the time with my astronomical telescope when looking at the Sun,. as the finder scope  doesn't have a filter. Any part of the telescope with an axis along the direction of view works just fine/  I even mounted two toothpicks at either end of the tube!  That works great.  Thanks, all for your very practical advice.

Norm