I remember reading a thread from a while ago regarding this. I've had my cube for a while and it has the old style quick release. I had read that stories about this coming off. Now that I have changed my tripod, I would like to change this as well as it is always very scary when I have my Alpa looking down 90 degrees. I am always scared it will fall and hesitate to leave it on the tripod for even a second without my hands on it. So I would like to trade it out for an RRS screw knob clamp. Is this hard to switch out myself?