As I had to change the clutch liner and take out the engine, I took a service on my N7 that had some 100 flights on it. Instead of dissasembling the blade grips to put in new grease, I of course would try to use the grease ports. Well I have now tried to do so with the Boto-Luber, but it is impossible for me to get in enough grease so that it comes out of the other port as I was told in this tread that it should do. I tried with all my force and nearly ruined the syringe. Anyway, I guess I have got enough grease in as it is, but I have no idea of how much grease that have gone in to the ports.