Tom you are wrong and a good public defender/private hire will eat you alive. I am not saying your interpretation of the law is criminal however your actions of charging someone with stacked charges that could and may be looked at as shady will haunt you some day. 11 years ago when I was new on the street I would do just that. I got away with it for 4 or 5 years because I made solid collars and the other charges didn't really intensify the situation. However there was a trial 3 years ago where the federal public defender, who was more studied than the average ambulance chaser, kicked my ass in trial. It was a DWI where I stacked the charges on the guy because he was a complete ass and I could find quite a few charges that were window dressing to the real meat of the case. I did this because the people he hit were out-of-towners and I thought the same as you. On the stand I testified as normal and when it came to the question of all the other charges and I tried to tap dance around statutes, the judge, who I consider a mentor of mine, threw out the case. He also gave me a look of discontent that I will never forget. I understand enforcing the spirit of the law as opposed to the letter of the law, and I can see by your post that you do too, so no biggie here. Just understand that it is plainly evident that you know none of these knives in question, like the axis lock BM's and such are gravity knives. Because of that you know you are doing the wrong thing just to make a lockup stick when the report and other supporting evidence if written and presented properly will hold thier own water. The funny thing is, as I am writing this I am talking to my aunt who is a federal appeals court judge now but has been in the trenches. I asked her for her thoughts on the matter, and she agrees with me to this extent. In a low court like the one where your cases on these type of Mis/Fel cases are heard and you have like 100 cases on the docket for one day, the judge and prosecuter/defender probably just buzz through the cases. However, in a court of higher power, where people take thier jobs a little more seriously and arn't burnt out, these charges will get questioned. But in the end, if it works for you and you don't mind the extra work then go for it. I am sure you arn't a jerk or anything, and I believe in the thin blue line as much as anyone so I am not trying to start in on you too much. Just a bit of razzing from one ground pounder to another. Just remember that if you think your charges have some holes in them, then they probably do. If I was the defendant and know what I know, I would get off on the extra charges and you would have wasted your time. Finally, to answer the original question. Yes it is bad for the knife to be flicked open, unless it is designed for that purpose. Rule of thumb for me is. If it comes with a flipper, like some of the Kershaws, and customs made by DDR then yeah go ahead. If it is just so smooth that you can but has no feature that makes it a flipper than don't try it unless you don't care about blade play. Exceptions are the Emerson's with with the wave. They can open with some force so if you do flick one of them and it develops play then it should be covered by the warrantee.