The Medical Kit is superior to the Restoration Kit in every way. Not only does it heal faster, it heals more. Many people use the Restoration Kit as a way to heal "in battle", but the healing is actually very underwhelming and will only prolong your death for a fraction of a second. Every class has twenty bars of health (not including shields). If you have taken damage and only have one bar of health left, using a Restoration Kit will only regenerate eighteen bars of health over the span of about five seconds, leaving you with nineteen out of twenty bars of health after the healing has taken place. The Medical Kit on the other hand appears to heal around forty bars of health over the span of about one second. This means that it not only heals you instantly, it also continues healing you long past your maximum health capacity. If used correctly, the Medical Kit can give you around six to seven times your normal amount of health after certing into it completely. Here is a video demonstration. I survive sustained LMG fire using the Medical Kit, buying me just enough time to get away. To everyone out there using Restoration Kits, stop. Switch to the Medical Kit now. Restoration Kits are a waste of resources.