Well the part about todd running bobcat isnt completely acurate. He makes everything for them just like he does the stuff for Vector (all of the vector HK stuff is doen by them and they work because vector makes sure they do.) Anyway, the first extractor springs did suck and after speaking with Bobcat on the phone they said they would send me a new one totally free of charge. They sent me one of the new gold plated springs (heard of people putting these in their HK guns because they are suppose to last longer.) He also offered to take my gun in there and replace any of the older stuff that was on it with new stuff since I bought it used due to supply and demand. He said he would rather make sure it works fine if I am using it for 3 guns and stuff. Well the extractor spring totally fixed any problems I had. I popped off the fake can when I got my form 1 back and attached not only the FH but a suppressor to the barrel without any problems with it being out of spec. I was doing 75 yard shots at the last 3 gun match with the thing and an aimpoint. I was tossing the plates at that distance just as well if not more consistantly than some of the ARs. I have the older lower since I dont like the way the ambi safety digs into my hand and I also have a HK fixed stock for it that I dont use as much as the colapsable. My 1 and only gripe is that the colapsable BW stock kind of sucks but I deal. I had also one problem with a winchester white box HP 147. It got caught on the feed ramp and it was the last round. From what I can tell it was a problem centering around the length of the bullet extending out of the case and the size of the hole in the tip. All of my more expensive self protection JHPs have a much smaller hole in the tip. Go figure what you get when you pay $10 for a box of subsonic hollow points.
I have heard of a few gripes about the Vector 40, 10s, and 357s. Most center around that they jam for like the first 200 rounds and that the BHO device breaks. Vector sais that they are fixing that problem soon and everyone would get replacements if they broke it. Currenlty, my local range has a 10mm there with registered sear and they put a ton of rounds through that thing. I dont think they have had any problems with it other than the BHO device.