Well it is what it is--you have to do what you feel best and I will not second guess you. I would gladly pay $20+ for your generic kit, I know it has saved me hundreds. I hope you consider selling on a generic on APUG. Last weekend the darkslide light seal on one of my Mamiya 645 Super film backs started leaking ruining 3 rolls of film. I pulled out the left overs from your generic kit and cobbed up a new seal and all is well!! So please consider APUG---hey I never said i wouldn't beg