I suspect that they chose the "over Hawick" arena due to the fact that if anything fell from the sky no great loss would occur
It would be a vast improvement.
Not an expert on the subject, but the two Hawks were trying to keep in close to the Typhoon, but it just kept pulling tight turns and losing them. It wasn't as good as the 2 Lightnings and at least 3 Phantoms I saw many years ago from almost the same spot, but they were a lot lower. The whole town may not have seen it, but they heard it.