I have used these types several times. I was a bit surprised when I noticed that they were not transparent. It is actually solid white and silver so at first it went over some of the writing in the bible. It caught me off guard but I still enjoy having them and I believe its very useful either way. It does take some patience and time. It wouldn't help if you can work with small items because getting them just right has been a challenge for me. I still wouldn't have a bible without it.
These look great, but since they are not pre-scored or do not have the same crease in them that the gold ones do, they are much harder to get on straight. USE THE PRACTICE TABS so you get comfortable with it. The boys in our youth group seem to favor these over the gold ones - I give them to everyone (large group) as my Tabs ministry - they find things so much more quickly, and are then drawn in again to the Word because now it seems so much more accessible!