Actually I started in 1991,as far as a cat head front end ,if my knife has a similarity to yours it was purely coincidental and not intentional I try to be as original as possable thats not to say that some part of a knife I made hasn't been done befor as that is nearly impossable just by the shear number of knives in existence. Case in point Jay Harris has been making a flipper like your Mad Max for years .check it out for yourself.
I acknowledge that the flipper has been arround forever.I don't know who invented it but my hats off to whomever.I never said I invented it . My style of flipper however is different by design than those of the past .Show me a picture of one like mine prior to me.And I will yeald my position.Yes Kit and CRKT came out with the first flipper knife that I know of and it's a great knife no arguements there.The boa came slightly later and significantly different than Kits also contributing to the popularity of the flipper. I don't even know why I'm repeating the obvious.
I don't know why I'm playing this game .My initial comment was a complimentry one and if not taken as such sorry!
I didn't start this thread. I don't care if your flipper is similar to mine .Have fun with them they work.