I found a sorta local Saftey Speedcut saw, the H4 model. However, it does not have the Knife Kit, which is partly what I'm after. I've contacted the mfg to see if it can be added, but apparently it cannot, at least affordably (about $1500 for the parts). I guess the saw is made different to accept the knife kit. So, my question is for those with one of these, how often do you use the Knife Kit (if you have it)? I personally think that I would use it a lot for coroplast, foamcore and the like, so this is a bummer to find out. Anyway, would appreciate any feedback.