I have the complete standard kydex press kit from Knifekits.com but my sheaths don't come out that great. They hold the knife in but there's no snapping in and out. I was just curious what other people's experience has been with the kit and I'm wondering if the foam should be upgraded? Or do you get good results with the provided foam? I use a heat gun with laser temp meter but I don't get the best definition, not even close. It's probably because it's not a consistent temp all the way around, like it would be if using an oven....is oven the way to go? I thought if I just used the heat gun long enough it would be the same thing but maybe the oven gives it a deeper heating? I'm guessing with the proper level of heat, the existing foam material should be good enough to make nice sheaths? Is this method of making sheaths super outdated and is the vacuum system the way to go? I don't plan on starting a sheath business but do want nice sheaths for my own knives. I might also be using kydex that's too thick....it's probably a combination of heat level/method, kydex thickness, and maybe foam quality?