Watcher... unless you were personally on the investigation team (unlikely - the Brits weren't given the best of access)... I'm not so sure you know any more than anyone else on this one.
Questions...
(a) Was the spacer fitted or not? Was it significant?
(b) Why were the most immediate witnessess (3 x airport fire crew, watching the roll) observations discounted?
(c) Was the runway condition a factor?
(d) Given the above, esp. the witnesses, did the burst happen before or after the FOD strike?
(e) Probably unrelated, but what happened at Halifax?
I'm not a big one for conspiracy theories either, but at least some of these questions should have transparent answers from somewhere.