today we played with openCollar 3.201 and notice those effects:
After some time, particularly a leash or several collars's
configuration, the sim become unstable : you can't move, can't rezz.
The only escape is Tp and restart the sim.
We did our test with the latest stable. We tried with several collars
and the sim went to 675% CPU usages (dual quad) and needed a restart.