I bought one of these for myself and I fell in love with it! It literally glides smoothly on the page and it doesn't bleed through. The color is very bright and you can easily read what you highlighted (I've used yellow, green and pink and all are awesome!). I decided to get one for each of the teens in our youth group. I bought Hi-Gliders in all the colors and the teens snatched them up like crazy! They actually LOVE using the Hi-Glider, they think these are the coolest!, and now I see them marking Scriptures in their Bibles all the time. That's worth it right there!
I have used many different highliters over my ministry and there have been some good, not so good and then down right poor. My favorite to this point has been Zebra LiteRite DE for marking Bibles.
I had occassion to pick up this highliter and it is the best that I have ever used. No hard pushing or highliting twice to see the area marked. It floureses so it is easy to see and very easy on the eyes.
This highliter does not rub off on the other pages, will not bleed through and does not take much to highlite the page.
I've used this on various bibles with different types of paper, it will bleed on thin pages or if you press "firmly". Atleast with this product you have better control of your marking line that with the other gel markers currently on the market.