Well, the [impression] system was a big deal. The technology is off the charts. The things that we do every day weren’t possible years ago. The new technology, the new impression material is so incredibly sophisticated that there is no longer any value in paying your doctor 100’s of dollars for him to show you how to make an impression. You also have technology that does what’s called model manipulation. If you didn’t read the instructions, if you sent in a bad impression, and you asked us to build your smile based on a compromised impression we can fix it. If we get a bite mark we can build a smile on it as long as we have a gumline. So with that, that’s all we need is a bottom bite, and a gumline and we’re done, we’ll fix it if it’s bad. The technology is what’s made it. If it wasn’t for the impression system, it would be dead.