Epinions.com Title: Works, but not NHTSA approved. Review Body: I took my Alpha Omega car seat to the California Highway Patrol Substation in San Juan Capistrano along with the Mighty-Tite. We had made an appointment almost a month in advance for our one hour instruction. I purchased a Mighty-Tite for $16 at Babies R Us as the Alpha Omega (non-LATCH) slid around more than the one inch maximum allowed. The Mighty-Tite did the job of tightening the car seat to within one inch of play room. I don't use it on the Alpha Omega in the forward facing position because it is not needed in my case. Only rear facing needed supplementary tightening for my BMW 330i and wife's Acura MDX. I asked the CHP officer during our one hour session about the Mighty-Tite. He said it was not approved by the NHTSA (http://www.nhtsa.dot.gov/) and so he could not recommend it. He checked the car seat against the recall list and showed us how to install it. He cut a section of a four inch diameter fun noodle pool toy to level the car seat. The foam will not scratch the upholstery and it will not compress. He twisted the buckle (female socket side) to make it shorter. He cracked the plastic housing during the twisting. Sigh. I only bought the 330i a month ago. [Day's later, the dealer used cyanoacrylate (aka Crazy Glue or CA) to repair it; but the usual white foggy haze associated with CA is now permanently outlining the seam.] The CHP officer said to store all loose items in the trunk instead of the passenger compartment. In a violent collision or rollover, they become flying projectiles. The Mighty-Tite was lying next to the car seat at the time, and he had pointed to it as an example. I now use foam drawer liner / netting as an anti-slip mat between the car seat and the leather upholstery. I still use the Mighty-Tite as needed when I'm unable to lock the car seat down so it won't move more than the one inch maximum without it. It is a bit bulky in small cars though. The NHTSA does not crash test BMWs nor did it test the Mighty-Tite. The Mighty Tite does tighten down car seats easily to within the one inch maximum play room. Don't tighten more than needed or you may exceed the limits of the car's seat belt/void warranty/weaken belt? Since I tighten the car seat (rear facing) as tight as I can before applying the Mighty-Tite, I figure if it does not cut or weaken the seat belt, it should be no worse than without it. Does it cut or weaken the seat belt? I don't know. The Mighty-Tite looks to be discontinued and replaced by the Tight Ride. Gone are the sharp edges from the Mighty-Tite which scrapes the seat belt each time you install or remove it. The Tight Ride still is not tested by the NHTSA. To avoid the issue of weakening car seat belts, a replacement LATCH kit with a tightener designed/built in might be easier to get NHTSA to test it. It would certainly not affect any car seat belt integrity. It would probably cost more though. If they sold it with a car seat then the NHTSA would have to test it ( at least test results for that car seat would be valid). rp05 Roger C. Pao 2005/06/14 Pros: (15 words maximum) required Can easily tighten car seat down to within the one inch maximum play room. Cons: (15 words maximum) required Not NHTSA approved. Sharp edges may weaken seat belt. Plastic may break at impact. Page 2 Amount Paid ($US): $16.00 The Bottom Line: (30 words maximum) required Not NHTSA approved, but does tighten the seat down. RNot NHTSA approved, but does tighten the seat down. I recommend the Tight Ride over the Mighty-Tite. Overall Product Rating: 2 stars Below Average Recommend to a friend? No -- Amazon.com Reviewer: R. Pao "rp05" (Laguna Niguel, CA, US) - See all my reviews I took my Alpha Omega car seat to the California Highway Patrol Substation in San Juan Capistrano along with the Mighty-Tite. We had made an appointment almost a month in advance for our one hour personal instruction. I asked him about the Mighty Tite and he said it was not approved by the National Highway Traffic Safety Administration (http://www.nhtsa.dot.gov/). He could not recommend using it. He checked the car seat against the recall list and showed us how to install it and said not to have things loose in the car. They become flying projectiles in a serious collision. He cut a section from a four inch in diameter water noodle foam pool toy to level the seat. It doesn't scratch and does not compress. The CHP officer twisted the seat belt buckle (female socket end) to shorten it. He split the plastic housing of my new 330i. Day's later, the dealer used cyanoacrylate (Crazy Glue) to put it back together, but it was forever marked with the white foggy haze at the seam. I now use foam drawer liner / netting as an anti slip mat between the car seat and the leather upolstery. I still use the Mighty-Tite as needed when I'm unable to lock the car seat down so it won't move more than the one inch maximum without it. It is a bit bulky in small cars though. Bottom line: Not approved by NHTSA, but it does do a good job of tightening the seat down. You can skip it and have more play or use it to easily tighten the seat down to within the one inch maximum play room.