I know this has been gone over before but has there been any changes with the Bear vault exchange program? As I understand it, the only way to exchange my BV200 is to plan a hike in the Rae Lakes drainage basin. Seems to me if the bears there can figure it out, then the bears in Yosemite shouldn't be to far behind in the learning process. Shouldn't all canisters be exchanged if there is a known possibility of a failure?
I have yet to have any problems with my canister but I will hopefully be attempting the JMT next summer and passing through the area in question. They do have campsites with bear lockers in this area to store my canister but this may limit a few of my choices.
One option I've been considering is planning a warm up hike earlier in the year to Rae Lakes and taking care of the exchange at that time.