Training, training training –

Could not agree with you more, but again you used a Munter while training, for SOO Training under supervision and somewhat controlled conditions. I have seen too many individuals freeze up when placed under stressful situations, sometimes despite training. There are numerous case studies of rescue/training fatalities/injuries involving individuals (instructors/long time rescuers) that froze (mentally and/or physically) at some critical juncture of the operation.

I have no doubt that you and thousands of other Firefighters, including myself, have used this technique successfully. However, I have also witnessed drop tests using a Munter, where despite the strength of the belayer, the load could not be controlled and led to catastrophic failure.

The CMC Escape Descender would be my preference as well, with 5mm. It is designed and has been tested to work with 5mm+ rope. Note that the CMC Escape line is 7.5mm

Pete