Great writeup of the event and well done on your performance. Seems like your weapon takes a lot of finesse to make it effective and it was great to see it work (and then sad to see it destroyed...). That's great that Gimson can fix the linacc, you don't hear of companies repairing small items like that very often (I once tried to buy a spare part for a £20 food processor and the cheapest I could find it was £25... ).

I was wondering if the chopping board might benefit from some reinforcement, perhaps some ribs/stringers running along the underside? That should make it less likely to start drooping if/when the weaker plastic gets damaged.