My current research is into the amount of protection the Roman soldier was given by his armour and how effective his weapons were. This means making copies of weapons and armour then testing them to destruction. It is very hard to spend hours making some thing and then with you own hands (and some times other peoples hands) smash them to bits. But the information you acquire is worth it.
The shield bosses and scale armour below are a clear example of the effects of repeated attacks with ballista bolts and axes.
Another area of research is into the methods used to produce iron in the Roman period. Over the years many other researchers have done experimental iron smelts with varying degrees of success. The current work is being carried out at Butser Ancient Farm and St Fagans Museum in Wales.