Yes, very good idea.

I did a little experiment today regarding the finding of "day time" stars or Venus and maybe Mercury. I have heard of being able to see a handfull of stars during the day with a telescope. I was going to try it with my LX200 GPS, but never got around to it.
With this idea, I looked on my astronomy program (Starrynight) and discovered that it lists the Sun with coordinates of alt\az. I could set up my scope during the day and put on my custom 60mm finder scope with Baader solar film, cover the 12" LB main UTA with a cover, then scan toward the SUN and then set the Azimuth setting while checking the alt. reading. Once aligned you could find Venus and recheck the settings and adjust as needed.
Then your off to find those daytime stars!

Of course after uncovering the scope, you would want to be VERY carefull about scanning near the Sun while looking for those stars, or even Mercury!