Double Zero thank you.
In the time I spent at the West Freugh test range, two skilled bomb-disposal experts were killed by BL 755 bomblets; so expertise doesn't help, and impact certainly doesn't necessarily set them off.
In fact the failure rate is somewhere about 5-6 per unit (use Google). That your BD exerts were killed is tragic but I wonder how they were killed.
Feel free to join in, you were one of the 'backroom boys' they didn't all have to wear a uniform.