I know it is off this particular topic, but I was looking at the RM Ti-100' s. I have read on a couple of other forums of people having problems with losing blades from the TI-100' s. You rate them very high. When you tested them, did you have any trouble with blade retention? I know I' ll probably replace them as soon as they are used on a deer, but I don' t want to constantly lose blades during practice. Is there a trick to keeping everything locked down tight with the blade-retaining collar?